Re: Is it safe to uninstall lsb_release to install my Epson printer driver?

[Frédéric]

> > However, to install it, I'm obliged to remove lsb_release (see below).
> > Is it safe?
>
> Well, it's just a ".noarch" package containing a single shell script,
> and it isn't installed by default, and specific to your installation
> nothing depends on it either, so what do you fear?

Thank you! Then, let's go
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Re: Is it safe to uninstall lsb_release to install my Epson printer driver?

[Michael Schwendt]

On Mon, 15 Jul 2024 17:53:04 +0200, Frédéric wrote:

> However, to install it, I'm obliged to remove lsb_release (see below).
> Is it safe?

Well, it's just a ".noarch" package containing a single shell script,
and it isn't installed by default, and specific to your installation
nothing depends on it either, so what do you fear?
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Is it safe to uninstall lsb_release to install my Epson printer driver?

[Frédéric]

Hi,

I'm trying to reinstall my Epson Stylus SX525WD printer after a brand
new install of Fedora 40. I normally install a rpm package found on
http://download.ebz.epson.net/. However the driver that worked in the
past giving all features is called "Printer Driver  ESC/P Driver (full
feature)" and has only a version from 2012:
Stylus SX525WD Printer Driver Linux latest ESC/P Driver (full feature)
All language 02-07-2012
-> epson-inkjet-printer-workforce-635-nx625-series-1.0.1-1lsb3.2.x86_64.rpm

However, to install it, I'm obliged to remove lsb_release (see below).
Is it safe?

Thanks

When I try to install it, I get this error:
$ sudo dnf install
./epson-inkjet-printer-workforce-635-nx625-series-1.0.1-1lsb3.2.x86_64.rpm
Last metadata expiration check: 1:41:52 ago on Mon 15 Jul 2024 04:07:07 PM CEST.
Error:
Problem: package
epson-inkjet-printer-workforce-635-nx625-series-1.0.1-1lsb3.2.x86_64
from @commandline requires lsb >= 3.2, but none of the providers can
be installed
 - package redhat-lsb-5.0-0.9.20231006git8d00acdc.fc40.i686 from
fedora conflicts with lsb_release provided by
lsb_release-3.3-3.fc40.noarch from fedora
 - package redhat-lsb-5.0-0.9.20231006git8d00acdc.fc40.x86_64 from
fedora conflicts with lsb_release provided by
lsb_release-3.3-3.fc40.noarch from fedora
 - problem with installed package lsb_release-3.3-3.fc40.noarch
 - package redhat-lsb-5.0-0.9.20231006git8d00acdc.fc40.i686 from
fedora conflicts with lsb_release provided by
lsb_release-3.3-3.fc40.noarch from @System
 - package redhat-lsb-5.0-0.9.20231006git8d00acdc.fc40.x86_64 from
fedora conflicts with lsb_release provided by
lsb_release-3.3-3.fc40.noarch from @System
 - conflicting requests
(try to add '--allowerasing' to command line to replace conflicting
packages or '--skip-broken' to skip uninstallable packages)

If I add --allowerasing, I get this:
sudo dnf install --allowerasing
./epson-inkjet-printer-workforce-635-nx625-series-1.0.1-1lsb3.2.x86_64.rpm
Last metadata expiration check: 1:42:50 ago on Mon 15 Jul 2024 04:07:07 PM CEST.
Dependencies resolved.

Package
   Architecture Version
Repository
 Size
====
Installing:
epson-inkjet-printer-workforce-635-nx625-series
   x86_64   1.0.1-1lsb3.2
@commandline
1.9 M
Installing dependencies:
redhat-lsb
   x86_64
5.0-0.9.20231006git8d00acdc.fc40   fedora
26 k
Removing dependent packages:
lsb_release
   noarch   3.3-3.fc40
@fedora
 30 k

Transaction Summary

Install  2 Packages
Remove   1 Package
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Re: printer only prints in flip mode

[Michael Hennebry]

On Sun, 3 Dec 2023, Neal Becker wrote:


I have a similar-sounding brother laserprinter.  I hate to say it, but I
found the available open-source driver didn't produce correct output with
mine, I had to use the proprietary driver from
brother: hll2395dwpdrv-4.0.0-1.i386.rpm


Nope.  Didn't work either.
Brother's driver made it stop printing altogether,
apparently put it in the state noted in my "pretends to print" thread.
Even though I had the brlaser package installed,
I decided to try the source version.
I unplugged the printer, updated the repository I already had,
and built according to instructions.
For install, I did not directly use sudo.
Instead I changed the ownership of the target directories
and changed them back after installation.
After reconnecting the printer, still no go,
not with the orginal name,
nor with the fedora-generated name.
Just for grins, I deleted both printers and put one back.
Now it prints correctly.

I hate these mighty struggles,
but at least I won this one.

--
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"SCSI is NOT magic. There are *fundamental technical
reasons* why it is necessary to sacrifice a young
goat to your SCSI chain now and then."   --   John Woods
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Re: printer only prints in flip mode

[Neal Becker]

I have a similar-sounding brother laserprinter.  I hate to say it, but I
found the available open-source driver didn't produce correct output with
mine, I had to use the proprietary driver from
brother: hll2395dwpdrv-4.0.0-1.i386.rpm

On Sun, Dec 3, 2023 at 4:03 PM Michael Hennebry <
henne...@web.cs.ndsu.nodak.edu> wrote:

> On Sat, 2 Dec 2023, George N. White III wrote:
>
> > On Sat, Dec 2, 2023 at 12:04?AM Michael Hennebry <
> > henne...@web.cs.ndsu.nodak.edu> wrote:
> >
> >> My Brother HL-L2360DW B&W laser printer
> >> is only printing in flip mode,
> >> i.e., when it prints 8.5x11 two-sided portrait,
> >> to read the back page, one must flip it vertically
> >> by a short side, rather that horizontally by a long edge.
> >>
> >
> > I think there have been changes to the PPD options for this.  How are you
> > connecting the
> > printer -- wifi or USB?
>
> USB
> When I first tried to install the printer,
> there was no option for this model.
>
> >> The defaults for the printer is set to
> >> job-sheets=none, none media=na_letter_8.5x11in sides=two-sided-long-edge
> >> I've restarted CUPS on F38.
> >> The problem occurs with both gedit and vim.
> >> In the case of gedit, page setup tells me I've set it up correctly,
> >> but it still does the wrong thing.
>
> > Is this a new install or was the printer working under Fedora in the
> past?
>
> In worked under F35.
>
> > That printer claims to support AirPrint, so should work with IPP
> > Everywhere, but there are
> > also legacy CUPS PPD files
>
> I have a separately downloaded brother-HLL2360D-cups-en.ppd from 2020.
> Apparently it did not work.
>
> With F35, I had to download and build some code, brlaser, to make it work.
> With F38, I am using package printer-driver-brlaser.x86_64 from updates.
> Said package apparently defined "Model"
> Brother HL-L2360D series, using brlaser v6 (en)  .
> The "Model" listed as current lacks the (en) .
>
> > See: <https://www.pwg.org/index.html>
> >
>
> > See: <https://wiki.archlinux.org/title/CUPS/Printer-specific_problems>
>
> Not seeing a lot info information on either site.
> The latter seems to link to the source that was rpm'ed to make
> printer-driver-brlaser.x86_64 .
> Despite the name, I do not see memtion of specific problems.
>
> I really hate the poke it and see what happens method of repair,
> but I might be reduced to it.
>
> --
> Michael   henne...@mail.cs.ndsu.nodak.edu
> "His longhand was fairly good in his youth, but as he got older it got
> smaller, more scribbly, and harder to read; although, like being hanged,
> one can get used to it." -- Gordon Dickson on H.P. Lovecraft's handwriting
> --
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Re: printer only prints in flip mode

[Michael Hennebry]

On Sat, 2 Dec 2023, George N. White III wrote:


On Sat, Dec 2, 2023 at 12:04?AM Michael Hennebry <
henne...@web.cs.ndsu.nodak.edu> wrote:


My Brother HL-L2360DW B&W laser printer
is only printing in flip mode,
i.e., when it prints 8.5x11 two-sided portrait,
to read the back page, one must flip it vertically
by a short side, rather that horizontally by a long edge.



I think there have been changes to the PPD options for this.  How are you
connecting the
printer -- wifi or USB?


USB
When I first tried to install the printer,
there was no option for this model.


The defaults for the printer is set to
job-sheets=none, none media=na_letter_8.5x11in sides=two-sided-long-edge
I've restarted CUPS on F38.
The problem occurs with both gedit and vim.
In the case of gedit, page setup tells me I've set it up correctly,
but it still does the wrong thing.



Is this a new install or was the printer working under Fedora in the past?


In worked under F35.


That printer claims to support AirPrint, so should work with IPP
Everywhere, but there are
also legacy CUPS PPD files


I have a separately downloaded brother-HLL2360D-cups-en.ppd from 2020.
Apparently it did not work.

With F35, I had to download and build some code, brlaser, to make it work.
With F38, I am using package printer-driver-brlaser.x86_64 from updates.
Said package apparently defined "Model"
Brother HL-L2360D series, using brlaser v6 (en)  .
The "Model" listed as current lacks the (en) .


See: <https://www.pwg.org/index.html>




See: <https://wiki.archlinux.org/title/CUPS/Printer-specific_problems>


Not seeing a lot info information on either site.
The latter seems to link to the source that was rpm'ed to make
printer-driver-brlaser.x86_64 .
Despite the name, I do not see memtion of specific problems.

I really hate the poke it and see what happens method of repair,
but I might be reduced to it.

--
Michael   henne...@mail.cs.ndsu.nodak.edu
"His longhand was fairly good in his youth, but as he got older it got
smaller, more scribbly, and harder to read; although, like being hanged,
one can get used to it." -- Gordon Dickson on H.P. Lovecraft's handwriting
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Re: printer only prints in flip mode

[George N. White III]

On Sat, Dec 2, 2023 at 12:04 AM Michael Hennebry <
henne...@web.cs.ndsu.nodak.edu> wrote:

> My Brother HL-L2360DW B&W laser printer
> is only printing in flip mode,
> i.e., when it prints 8.5x11 two-sided portrait,
> to read the back page, one must flip it vertically
> by a short side, rather that horizontally by a long edge.
>

I think there have been changes to the PPD options for this.  How are you
connecting the
printer -- wifi or USB?

My wife has a Canon Printer that support AirPrint.  In Gnome Settings it
gets
<http://Canon MG7500 series._ipp._tcp.local:631>.  On the "Printer Test
Page" the
entry for Make and Model has:

MG7500 series - IPP Everywhere

The Duples sectionis the PPD file is:

*OpenUI *Duplex: PickOne
*OrderDependency: 10 AnySetup *Duplex
*en_CA.Translation Duplex/2-Sided Printing: ""
*DefaultDuplex: None
*Duplex None: "<>setpagedevice"
*en_CA.Duplex None/Off (1-Sided): ""
*Duplex DuplexNoTumble: "<>setpagedevice"
*en_CA.Duplex DuplexNoTumble/Long-Edge (Portrait): ""
*Duplex DuplexTumble: "<>setpagedevice"
*en_CA.Duplex DuplexTumble/Short-Edge (Landscape): ""
*CloseUI: *Duplex


>
> The defaults for the printer is set to
> job-sheets=none, none media=na_letter_8.5x11in sides=two-sided-long-edge
> I've restarted CUPS on F38.
> The problem occurs with both gedit and vim.
> In the case of gedit, page setup tells me I've set it up correctly,
> but it still does the wrong thing.
>
> Any ideas on what is wrong, how I can fix it or how I can find out?
>

Is this a new install or was the printer working under Fedora in the past?

That printer claims to support AirPrint, so should work with IPP
Everywhere, but there are
also legacy CUPS PPD files

See: <https://www.pwg.org/index.html>

See: <https://wiki.archlinux.org/title/CUPS/Printer-specific_problems>

-- 
George N. White III
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printer only prints in flip mode

[Michael Hennebry]

My Brother HL-L2360DW B&W laser printer
is only printing in flip mode,
i.e., when it prints 8.5x11 two-sided portrait,
to read the back page, one must flip it vertically
by a short side, rather that horizontally by a long edge.

The defaults for the printer is set to 
job-sheets=none, none media=na_letter_8.5x11in sides=two-sided-long-edge

I've restarted CUPS on F38.
The problem occurs with both gedit and vim.
In the case of gedit, page setup tells me I've set it up correctly,
but it still does the wrong thing.

Any ideas on what is wrong, how I can fix it or how I can find out?

--
Michael   henne...@mail.cs.ndsu.nodak.edu
"His longhand was fairly good in his youth, but as he got older it got
smaller, more scribbly, and harder to read; although, like being hanged,
one can get used to it." -- Gordon Dickson on H.P. Lovecraft's handwriting
--
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Re: Tip: default printer

[Stephen Morris]

On 16/11/23 02:20, George N. White III wrote:
On Tue, Nov 14, 2023 at 5:58 PM Stephen Morris 
 wrote:


[...]

Hi George,
    I was pointing this out because I don't use the IPP Anywhere
interface, and cups has never supplied drivers for my printer,
I've had to always the Epson supplied driver to enable printing in
Linux. This was just an observation with, when adding a printer,
cups shows me two entries under the "Discovered Network Printer"
section, one for IPP Anywhere and one for the "Driverless" option,
where the IPP Anywhere shows two separate driver definitions for
cups drivers and the driverless option, whereas the "Driverless"
selection displays all drivers in the one list with the driverless
driver listed first and all the cups drivers then listed in
alphabetical order.


I wonder if we are in a transitional phase where legacy CUPS is mixing 
with IPP.   Some manufacturers may provide legacy support in their 
printers when they add IPP,
but (until Apple changes AirPrint), most manufacturers' networked 
printers will provide IPP because they want Apple AirPrint to work for 
customers using IOS.


I have never used IPP Anywhere with this printer, IPP Anywhere seems to 
be a relatively recent innovation in cups. It used to be just IPP among 
other options, which seem to have disappeared now, but I was never able 
to get IPP to work with my Epson printer.


regards,
Steve


--
George N. White III


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Description: OpenPGP public key


OpenPGP_signature.asc
Description: OpenPGP digital signature
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Re: Tip: default printer

[George N. White III]

On Tue, Nov 14, 2023 at 5:58 PM Stephen Morris 
wrote:

> [...]
>
Hi George,
> I was pointing this out because I don't use the IPP Anywhere
> interface, and cups has never supplied drivers for my printer, I've had to
> always the Epson supplied driver to enable printing in Linux. This was just
> an observation with, when adding a printer, cups shows me two entries under
> the "Discovered Network Printer" section, one for IPP Anywhere and one for
> the "Driverless" option, where the IPP Anywhere shows two separate driver
> definitions for cups drivers and the driverless option, whereas the
> "Driverless" selection displays all drivers in the one list with the
> driverless driver listed first and all the cups drivers then listed in
> alphabetical order.
>
>
I wonder if we are in a transitional phase where legacy CUPS is mixing with
IPP.   Some manufacturers may provide legacy support in their printers when
they add IPP,
but (until Apple changes AirPrint), most manufacturers' networked printers
will provide IPP because they want Apple AirPrint to work for customers
using IOS.

-- 
George N. White III
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Re: Tip: default printer

[ToddAndMargo via users]

On 11/14/23 13:58, Stephen Morris wrote:

On 8/11/23 09:02, George N. White III wrote:
On Tue, Nov 7, 2023 at 5:54 PM Stephen Morris 
 wrote:


One thing that is interesting, if I use KDE's system settings to
add a
printer, and I select the Epson ET3700 Series network printer entry
which uses IPP Anywhere, when I'm prompted for the driver I get
offered
two Epson categories (Epson and EPSON), the second category has the
driverless driver and the first category has all the cups supplied
drivers, of which there isn't one for the printer I have. I've had
the
printer for several years, but I guess it is still too new for
cups to
support.


https://openprinting.github.io/cups/ Says:

OpenPrinting CUPS

The current standards-based, open source printing system developed by 
OpenPrinting for Linux® and other Unix®-like operating systems. CUPS 
uses IPP Everywhere™ to support printing to local and network printers.


I doubt anyone will be working on legacy CUPS drivers for printers 
that support IPP/AirPrint/.

Hi George,
     I was pointing this out because I don't use the IPP Anywhere 
interface, and cups has never supplied drivers for my printer, I've had 
to always the Epson supplied driver to enable printing in Linux. This 
was just an observation with, when adding a printer, cups shows me two 
entries under the "Discovered Network Printer" section, one for IPP 
Anywhere and one for the "Driverless" option, where the IPP Anywhere 
shows two separate driver definitions for cups drivers and the 
driverless option, whereas the "Driverless" selection displays all 
drivers in the one list with the driverless driver listed first and all 
the cups drivers then listed in alphabetical order.


regards,
Steve



--
George N. White III


Hi George,

Try the ppd list for a driver:

http://openprinting.org/printers

That being said, my Brother HLL-2300D was not in the list
and I had to use Brother's ppd.

-T
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Re: Tip: default printer

[Stephen Morris]

On 8/11/23 09:02, George N. White III wrote:
On Tue, Nov 7, 2023 at 5:54 PM Stephen Morris 
 wrote:


One thing that is interesting, if I use KDE's system settings to
add a
printer, and I select the Epson ET3700 Series network printer entry
which uses IPP Anywhere, when I'm prompted for the driver I get
offered
two Epson categories (Epson and EPSON), the second category has the
driverless driver and the first category has all the cups supplied
drivers, of which there isn't one for the printer I have. I've had
the
printer for several years, but I guess it is still too new for
cups to
support.


https://openprinting.github.io/cups/ Says:

OpenPrinting CUPS

The current standards-based, open source printing system developed by 
OpenPrinting for Linux® and other Unix®-like operating systems. CUPS 
uses IPP Everywhere™ to support printing to local and network printers.


I doubt anyone will be working on legacy CUPS drivers for printers 
that support IPP/AirPrint/.

Hi George,
    I was pointing this out because I don't use the IPP Anywhere 
interface, and cups has never supplied drivers for my printer, I've had 
to always the Epson supplied driver to enable printing in Linux. This 
was just an observation with, when adding a printer, cups shows me two 
entries under the "Discovered Network Printer" section, one for IPP 
Anywhere and one for the "Driverless" option, where the IPP Anywhere 
shows two separate driver definitions for cups drivers and the 
driverless option, whereas the "Driverless" selection displays all 
drivers in the one list with the driverless driver listed first and all 
the cups drivers then listed in alphabetical order.


regards,
Steve



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Re: Tip: default printer

[George N. White III]

On Tue, Nov 7, 2023 at 5:54 PM Stephen Morris 
wrote:

> One thing that is interesting, if I use KDE's system settings to add a
> printer, and I select the Epson ET3700 Series network printer entry
> which uses IPP Anywhere, when I'm prompted for the driver I get offered
> two Epson categories (Epson and EPSON), the second category has the
> driverless driver and the first category has all the cups supplied
> drivers, of which there isn't one for the printer I have. I've had the
> printer for several years, but I guess it is still too new for cups to
> support.
>

https://openprinting.github.io/cups/ Says:

OpenPrinting CUPS

The current standards-based, open source printing system developed by
OpenPrinting for Linux® and other Unix®-like operating systems. CUPS uses
IPP Everywhere™ to support printing to local and network printers.

I doubt anyone will be working on legacy CUPS drivers for printers that
support IPP/AirPrint/.


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Re: Tip: default printer

[Stephen Morris]

On 7/11/23 11:14, ToddAndMargo via users wrote:

On 11/6/23 14:59, Stephen Morris wrote:

On 6/11/23 19:48, ToddAndMargo via users wrote:

Hi All,

This is my keeper file on the default printer.

Hope this helps someone else.

-T

Exactly what purpose does the "server default" printer serve?
Is it even possible to send the CUPS server a print job with
no printer specified?    !!


On my system I didn't have any printers defined, so to test things I 
added my network printer which is an Epson ET3700.
Before I started, ~/.cups/lpoptions didn't exist and 
/etc/cups/lpoptions was empty.
To add my printer I went into the cups interface, as I always do, in 
firefox and under Administration I selected "Add Printer". That 
displayed all the print devices cups could see, which included "Epson 
ET3700 Series" and "Epson ET3700 Series Driverless" under "Network 
Printers". I selected "Epson ET3700 Series Driverless, and then in 
the Model selection on the next screen, I selected the "Driverless 
Driver" rather than the "IPP Everywhere Driver", then clicked on "Add 
Printer".
After defining the printer I checked ~/.cups/lpoptions and it still 
did not exist, and /etc/cups/lpoptions was still empty. Lpstat -p 
showed my printer only and lpstat -d said there was no system default.
Going into KDE's system settings Printer interface shows the printer 
I added in Cups with "Default Printer" not checked, and when I click 
on "Configure" and look at the printer properties it shows me the 
settings I set in cups as the default properties.
If I start Libreoffice Writer and look at file->Printer Properties it 
shows two entries for my printer, one with "Double Sided Printing" 
active, which I set in the default options in Cups, and one entry 
with "Double Sided Printing" turned off, and unfortunately both 
printer entries have the same name.
The double entry that Libreoffice Writer shows is similar to the 
issue I get under Windows. Under windows when I install the Epson 
printer driver and install my printer, the printer installation 
creates two printer definitions, an Epson ET3700 "Local" and an Epson 
ET3700 Network, where the "Local" entry has "Double Sided" printing 
active and the "Network" entry has "Double Sided" printing turned off 
and Administrator Disabled so that it can't be changed. Even though 
the printer is set up this way the "Local" definition still outputs 
to the network printer anyway.


regards,
Steve


Hi Steve,

This is exactly what I was seeing.

 I did not realize that
    ~/.cups/lpoptions, and
    /etc/cups/lpoptions

had to be set outside the WebUI (https://127.0.0.1:631).
Confused the heck (not my "actual" word) out of me.

The WebUI's default is server only.  For what use, I can not
fathom.

To see what the Server's default is, check /etc/cups/printers.conf
as root.

su root -c "less /etc/cups/printers.conf | grep -i DefaultPrinter"



I did a sudo cat /etc/cups/printers.conf and that has an entry for my 
printer only (no cups-pdf) and it does not have a DefaultPrinter entry, 
and my assumption is, as I only have one printer definition, by default 
that is the default printer.
One other thing I noticed is if you go into cups in your browser via 
localhost:631 and go into the printer definition, in the 
"Administration" dropdown there is an entry to set the default printer 
but the entry says "Set the Server Default", so cups is actually telling 
you that the default printer set in cups is the server default.
I suspect that when printing is done via cups, it is the cups server 
that is using the driver for the server defined printer on the server to 
do all the printer specific translations, rather than that being done on 
the client side (It has always been my interpretation that when using 
cups for printing that you are interfacing to a server and it is the 
server that is doing all the printing work, whereas if printing is being 
done via lpr then the environment where lpr is being invoked from is 
doing all the printing work). It has also always been my experience that 
if you set your printer up to use cups drivers, and cups is down for 
whatever reason, you can't do any printing.
One thing that is interesting, if I use KDE's system settings to add a 
printer, and I select the Epson ET3700 Series network printer entry 
which uses IPP Anywhere, when I'm prompted for the driver I get offered 
two Epson categories (Epson and EPSON), the second category has the 
driverless driver and the first category has all the cups supplied 
drivers, of which there isn't one for the printer I have. I've had the 
printer for several years, but I guess it is still too new for cups to 
support.


regards,
Steve




I

Re: Tip: default printer

[ToddAndMargo via users]

On 11/6/23 14:59, Stephen Morris wrote:

On 6/11/23 19:48, ToddAndMargo via users wrote:

Hi All,

This is my keeper file on the default printer.

Hope this helps someone else.

-T

Exactly what purpose does the "server default" printer serve?
Is it even possible to send the CUPS server a print job with
no printer specified?    !!


On my system I didn't have any printers defined, so to test things I 
added my network printer which is an Epson ET3700.
Before I started, ~/.cups/lpoptions didn't exist and /etc/cups/lpoptions 
was empty.
To add my printer I went into the cups interface, as I always do, in 
firefox and under Administration I selected "Add Printer". That 
displayed all the print devices cups could see, which included "Epson 
ET3700 Series" and "Epson ET3700 Series Driverless" under "Network 
Printers". I selected "Epson ET3700 Series Driverless, and then in the 
Model selection on the next screen, I selected the "Driverless Driver" 
rather than the "IPP Everywhere Driver", then clicked on "Add Printer".
After defining the printer I checked ~/.cups/lpoptions and it still did 
not exist, and /etc/cups/lpoptions was still empty. Lpstat -p showed my 
printer only and lpstat -d said there was no system default.
Going into KDE's system settings Printer interface shows the printer I 
added in Cups with "Default Printer" not checked, and when I click on 
"Configure" and look at the printer properties it shows me the settings 
I set in cups as the default properties.
If I start Libreoffice Writer and look at file->Printer Properties it 
shows two entries for my printer, one with "Double Sided Printing" 
active, which I set in the default options in Cups, and one entry with 
"Double Sided Printing" turned off, and unfortunately both printer 
entries have the same name.
The double entry that Libreoffice Writer shows is similar to the issue I 
get under Windows. Under windows when I install the Epson printer driver 
and install my printer, the printer installation creates two printer 
definitions, an Epson ET3700 "Local" and an Epson ET3700 Network, where 
the "Local" entry has "Double Sided" printing active and the "Network" 
entry has "Double Sided" printing turned off and Administrator Disabled 
so that it can't be changed. Even though the printer is set up this way 
the "Local" definition still outputs to the network printer anyway.


regards,
Steve


Hi Steve,

This is exactly what I was seeing.

 I did not realize that
~/.cups/lpoptions, and
/etc/cups/lpoptions

had to be set outside the WebUI (https://127.0.0.1:631).
Confused the heck (not my "actual" word) out of me.

The WebUI's default is server only.  For what use, I can not
fathom.

To see what the Server's default is, check /etc/cups/printers.conf
as root.

su root -c "less /etc/cups/printers.conf | grep -i DefaultPrinter"





I reported the problem over on CUPS:
   CUPS UI (631) fails to update the default printer in /etc/cups/lpoptions
   https://github.com/OpenPrinting/cups/issues/818
They explained the misunderstanding to me.

I did ask on the bug report if they would included some
declaration on the Web UI's page that this was the server's
default and not the local machine's default so that
it would be intuitive to those without developer's level
knowledge of the situation.

"..it is not intuitively obvious to the lay user. It
took me two years to figure it out. Would you consider
removing the confusion for lay people by adding some
wording to the Web UI to the affect that "This is
the service side default printer. For your local
computer, set the default printer with lpoptions:
lpoptions -d printer-name.

Okay, and I know I may be pushing it here, but it would
be capitol if you added a client side setting for
default printer to the  Web UI too."

I have not heard back from them, but it has not been that
long yet.

-T
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Re: Tip: default printer

[ToddAndMargo via users]

On 11/6/23 13:14, Michael Hennebry wrote:

On Mon, 6 Nov 2023, ToddAndMargo via users wrote:


Exactly what purpose does the "server default" printer serve?
Is it even possible to send the CUPS server a print job with
no printer specified?    !!


For sure, lp and lpr use the default printer if not told otherwise.
I think that vim will only use the default printer,
but configuration might be possible.
Anyone know for sure?



I do believe that lp and lpr will fill in the default
printer for you, if you do not specify a printer.
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Re: Tip: default printer

[Stephen Morris]

On 6/11/23 19:48, ToddAndMargo via users wrote:

Hi All,

This is my keeper file on the default printer.

Hope this helps someone else.

-T

Exactly what purpose does the "server default" printer serve?
Is it even possible to send the CUPS server a print job with
no printer specified?    !!
On my system I didn't have any printers defined, so to test things I 
added my network printer which is an Epson ET3700.
Before I started, ~/.cups/lpoptions didn't exist and /etc/cups/lpoptions 
was empty.
To add my printer I went into the cups interface, as I always do, in 
firefox and under Administration I selected "Add Printer". That 
displayed all the print devices cups could see, which included "Epson 
ET3700 Series" and "Epson ET3700 Series Driverless" under "Network 
Printers". I selected "Epson ET3700 Series Driverless, and then in the 
Model selection on the next screen, I selected the "Driverless Driver" 
rather than the "IPP Everywhere Driver", then clicked on "Add Printer".
After defining the printer I checked ~/.cups/lpoptions and it still did 
not exist, and /etc/cups/lpoptions was still empty. Lpstat -p showed my 
printer only and lpstat -d said there was no system default.
Going into KDE's system settings Printer interface shows the printer I 
added in Cups with "Default Printer" not checked, and when I click on 
"Configure" and look at the printer properties it shows me the settings 
I set in cups as the default properties.
If I start Libreoffice Writer and look at file->Printer Properties it 
shows two entries for my printer, one with "Double Sided Printing" 
active, which I set in the default options in Cups, and one entry with 
"Double Sided Printing" turned off, and unfortunately both printer 
entries have the same name.
The double entry that Libreoffice Writer shows is similar to the issue I 
get under Windows. Under windows when I install the Epson printer driver 
and install my printer, the printer installation creates two printer 
definitions, an Epson ET3700 "Local" and an Epson ET3700 Network, where 
the "Local" entry has "Double Sided" printing active and the "Network" 
entry has "Double Sided" printing turned off and Administrator Disabled 
so that it can't be changed. Even though the printer is set up this way 
the "Local" definition still outputs to the network printer anyway.


regards,
Steve





CUPS: manually correct the default printer

Reference(s):
   https://en.opensuse.org/SDB:Print_Settings_with_CUPS
   https://github.com/OpenPrinting/cups/issues/818

CUPS Web UI (https://127.0.0.1:631) fails to update /etc/cups/lpoptions
to a new default printer.   Note that this is on purpose,  The Web UI's
default printer is the server's default.  Not the local (client)
computer's default.


The local computer's defaults are found in:
   user:
   ~/.cups/lpoptions

   global (if not user default):
   /etc/cups/lpoptions


Fix action:

First, list installed printers:
    $ lpstat -p
    printer Cups-PDF is idle.  ...
    printer HLL2300D ...
    printer HLL2300D_ManualTray ...

To set the system defualt:
    # vi /etc/cups/lpoptions
    Default Printer_Name_from_lpstat_above
    # systemctl restart cups

To set the user's default:
    $ lpoptions -d Printer_Name_from_lpstat_above

To double check:
    $ lpstat -d
    system default destination: Cups-PDF

Note: this is the local user default, not the system default.
reported under:
    lpstat gives incorrect wording for the default printer
    https://github.com/OpenPrinting/cups/issues/819

Example files involved:
    System:
    # cat /etc/cups/lpoptions
    Default HLL2300D

    User:
    $ cat ~/.cups/lpoptions
    Default Cups-PDF
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Re: Tip: default printer

[Michael Hennebry]

On Mon, 6 Nov 2023, ToddAndMargo via users wrote:


Exactly what purpose does the "server default" printer serve?
Is it even possible to send the CUPS server a print job with
no printer specified?!!


For sure, lp and lpr use the default printer if not told otherwise.
I think that vim will only use the default printer,
but configuration might be possible.
Anyone know for sure?

--
Michael   henne...@mail.cs.ndsu.nodak.edu
"I was just thinking about the life of a pumpkin.  Grow up in the sun,
happily entwined with others, and then someone comes along,
cuts you open, and rips your guts out."  --   Buffy
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Tip: default printer

[ToddAndMargo via users]

Hi All,

This is my keeper file on the default printer.

Hope this helps someone else.

-T

Exactly what purpose does the "server default" printer serve?
Is it even possible to send the CUPS server a print job with
no printer specified?!!



CUPS: manually correct the default printer

Reference(s):
   https://en.opensuse.org/SDB:Print_Settings_with_CUPS
   https://github.com/OpenPrinting/cups/issues/818

CUPS Web UI (https://127.0.0.1:631) fails to update /etc/cups/lpoptions
to a new default printer.   Note that this is on purpose,  The Web UI's
default printer is the server's default.  Not the local (client)
computer's default.


The local computer's defaults are found in:
   user:
   ~/.cups/lpoptions

   global (if not user default):
   /etc/cups/lpoptions


Fix action:

First, list installed printers:
$ lpstat -p
printer Cups-PDF is idle.  ...
printer HLL2300D ...
printer HLL2300D_ManualTray ...

To set the system defualt:
# vi /etc/cups/lpoptions
Default Printer_Name_from_lpstat_above
# systemctl restart cups

To set the user's default:
$ lpoptions -d Printer_Name_from_lpstat_above

To double check:
$ lpstat -d
system default destination: Cups-PDF

Note: this is the local user default, not the system default.
reported under:
lpstat gives incorrect wording for the default printer
https://github.com/OpenPrinting/cups/issues/819

Example files involved:
System:
# cat /etc/cups/lpoptions
Default HLL2300D

User:
$ cat ~/.cups/lpoptions
Default Cups-PDF
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Re: Printer drivers and raw queues are deprecated

[Samuel Sieb]

On 11/1/23 05:40, Tim via users wrote:

And I wonder how this will affect people who don't use Avahi, et al?

I switch it off wherever possible, because it adds a new can of worms
to networking.  I have things on my LAN that can only use DHCP, and
only want one network configuration control to deal with.  Avahi is a
bit of a loose cannon.


MDNS is orthogonal to DHCP.  The devices still use DHCP to get their IP 
address.  MDNS is for other devices to find them on the network.

"Multicast DNS".  Nothing to do with network configuration at all.
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Re: Printer drivers and raw queues are deprecated

[Michael Hennebry]

On Wed, 1 Nov 2023, Robert Nichols wrote:


On 11/1/23 06:14, T.C. Hollingsworth wrote:

On Tue, Oct 31, 2023 at 3:31?PM Robert Nichols
 wrote:

How is that supposed to work for printers that have no network capability?


IPP over USB
https://fedoraproject.org/wiki/How_to_debug_printing_problems#Driverless_printing_(USB)
https://www.usb.org/document-library/ipp-protocol-10


And, for printers that are not USB and do not support IPP?


My guess is that many of the ancients would be out of luck.
That said, writing interface layers would certainly be possible.
Each type of printer would need a distinct interface.
The layer would require expertise in both CUPS and the printer type.
If any got written,
I'd expect one for printers that take postscript directly.

--
Michael   henne...@mail.cs.ndsu.nodak.edu
"I was just thinking about the life of a pumpkin.  Grow up in the sun,
happily entwined with others, and then someone comes along,
cuts you open, and rips your guts out."  --   Buffy
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Re: Printer drivers and raw queues are deprecated

[Robert Nichols]

On 11/1/23 06:14, T.C. Hollingsworth wrote:

On Tue, Oct 31, 2023 at 3:31 PM Robert Nichols
 wrote:

How is that supposed to work for printers that have no network capability?


IPP over USB
https://fedoraproject.org/wiki/How_to_debug_printing_problems#Driverless_printing_(USB)
https://www.usb.org/document-library/ipp-protocol-10


And, for printers that are not USB and do not support IPP?

--
Bob Nichols "NOSPAM" is really part of my email address.
Do NOT delete it.

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Re: Printer drivers and raw queues are deprecated

[Patrick O'Callaghan]

On Wed, 2023-11-01 at 23:10 +1030, Tim via users wrote:
> Michael Hennebry
> > > So, if I wanted to use a printer, e.g. mine,
> > > that was not support out of the box,
> > > I would have to change the box,
> > > i.e. make a custom CUPS?
> 
> Patrick O'Callaghan:
> > The theory is that you shouldn't have to do anything except
> > configure
> > the printer (in CUPS) to use DNSSD. That in turn depends on Avahi
> > working correctly. Try 'sudo avahi-browse -a -t' to make sure the
> > printer is visible.
> > 
> 
> And I wonder how this will affect people who don't use Avahi, et al?
> 
> I switch it off wherever possible, because it adds a new can of worms
> to networking.  I have things on my LAN that can only use DHCP, and
> only want one network configuration control to deal with.  Avahi is a
> bit of a loose cannon.

The dependency on Avahi comes from the use of DNSSD, so it's not
directly related to the driver. AFAIK you can also configure it with an
IP address if you want to handle that yourself.

poc
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Re: Printer drivers and raw queues are deprecated

[Tim via users]

Michael Hennebry
>> So, if I wanted to use a printer, e.g. mine,
>> that was not support out of the box,
>> I would have to change the box,
>> i.e. make a custom CUPS?

Patrick O'Callaghan:
> The theory is that you shouldn't have to do anything except configure
> the printer (in CUPS) to use DNSSD. That in turn depends on Avahi
> working correctly. Try 'sudo avahi-browse -a -t' to make sure the
> printer is visible.
> 

And I wonder how this will affect people who don't use Avahi, et al?

I switch it off wherever possible, because it adds a new can of worms
to networking.  I have things on my LAN that can only use DHCP, and
only want one network configuration control to deal with.  Avahi is a
bit of a loose cannon.

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Re: Printer drivers and raw queues are deprecated

[Patrick O'Callaghan]

On Tue, 2023-10-31 at 16:23 -0400, Neal Becker wrote:
> On Tue, Oct 31, 2023 at 2:53 PM Ian Pilcher 
> wrote:
> 
> > On 10/31/23 11:10, Patrick O'Callaghan wrote:
> > > The theory is that you shouldn't have to do anything except
> > > configure
> > > the printer (in CUPS) to use DNSSD. That in turn depends on Avahi
> > > working correctly. Try 'sudo avahi-browse -a -t' to make sure the
> > > printer is visible.
> > 
> > I just set up an Epson EcoTank inkjet printer.  Theoretically, it
> > supports IPP Everywhere, AirPrint, and driverless printing, but it
> > only
> > accepts ESC/P-R datastreams, so color me skeptical about the
> > wonderful
> > driverless future.
> > 
> Driverless sounds like a nice concept, but doesn't seem to work for
> me.  I
> deleted the proprietary printer driver for my brother laser hl-
> l2395dw,
> then on KDE try adding a printer.  It does detect the printer in the
> "discovered printers" section I see a hll2395dw "driverless" option. 
> But
> if I choose that, I'm prompted to fill in an ip address and some
> other info
> (port?).  So I don't think this is actually working.  Choosing
> instead
> Brother's proprietary driver works and connects via dnssd without
> asking me
> for other info.

See my earlier remark about Avahi. If Avahi is working, it shouldn't be
necessary for you to specify an IP address, but I've found that very
occasionally I need to give it a kick after a reboot or software
update, using the 'avahi-browse' command noted previously. Here's a
screenshot of the Add Printer dialogue in KDE/Plasma. The selected line
is the one that uses Avahi.

https://drive.google.com/file/d/1e3A7X3PputDQwFR6F77eVdXvt74Qy0of/view?usp=sharing

poc
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Re: Printer drivers and raw queues are deprecated

[Patrick O'Callaghan]

On Wed, 2023-11-01 at 04:14 -0700, T.C. Hollingsworth wrote:
> On Tue, Oct 31, 2023 at 3:31 PM Robert Nichols
>  wrote:
> > How is that supposed to work for printers that have no network
> > capability?
> 
> IPP over USB
> https://fedoraproject.org/wiki/How_to_debug_printing_problems#Driverless_printing_(USB)
> https://www.usb.org/document-library/ipp-protocol-10

Good to know.

poc
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Re: Printer drivers and raw queues are deprecated

[T.C. Hollingsworth]

On Tue, Oct 31, 2023 at 3:31 PM Robert Nichols
 wrote:
> How is that supposed to work for printers that have no network capability?

IPP over USB
https://fedoraproject.org/wiki/How_to_debug_printing_problems#Driverless_printing_(USB)
https://www.usb.org/document-library/ipp-protocol-10
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Re: Printer drivers and raw queues are deprecated

[T.C. Hollingsworth]

On Mon, Oct 30, 2023 at 10:47 AM Michael Hennebry
 wrote:
>
> CUPS wrote:
> > Note:Printer drivers and raw queues are deprecated and will stop working in 
> > a
> future version of CUPS.
>
> Then what?

Printer Applications:
https://openprinting.github.io/documentation/01-printer-application/

> It wrote that after I installed a Brother HL-L2360DW
> using the printer-driver-brlaser-6.2.6-1.fc38.x86_64 package.
> It provided the
> Brother HL-L2360D series, using brlaser v6 (en)
> option under model.
>
> If CUPS rejects my printer before it runs out of ink,
> will I have another option?

They do not plan to remove the deprecated functionality in CUPS until
the alternative, a printer application that understands legacy CUPS
PPD drivers, works well enough:
https://github.com/OpenPrinting/pappl-retrofit

But only Brother printers using their binary drivers will need that,
printers that work with the open source brlaser like yours are already
supported by one of the new driverless drivers:
https://www.openprinting.org/driver/brlaser/

So you have nothing to worry about, when Fedora CUPS maintainers cut
over to the new paradigm your printer should still work.  :-)
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Re: Printer drivers and raw queues are deprecated

[Patrick O'Callaghan]

On Tue, 2023-10-31 at 17:30 -0500, Robert Nichols wrote:
> On 10/31/23 11:10, Patrick O'Callaghan wrote:
> > The theory is that you shouldn't have to do anything except
> > configure
> > the printer (in CUPS) to use DNSSD. That in turn depends on Avahi
> > working correctly. Try 'sudo avahi-browse -a -t' to make sure the
> > printer is visible.
> 
> How is that supposed to work for printers that have no network
> capability?

No idea. I don't claim to be an expert in this, just reporting my own
experience. Presumably directly-connected printers are also supposed to
work but I don't have one to test.

poc
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Re: Printer drivers and raw queues are deprecated

[Robert Nichols]

On 10/31/23 11:10, Patrick O'Callaghan wrote:

The theory is that you shouldn't have to do anything except configure
the printer (in CUPS) to use DNSSD. That in turn depends on Avahi
working correctly. Try 'sudo avahi-browse -a -t' to make sure the
printer is visible.


How is that supposed to work for printers that have no network capability?

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Do NOT delete it.

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Re: Printer drivers and raw queues are deprecated

[Neal Becker]

On Tue, Oct 31, 2023 at 2:53 PM Ian Pilcher  wrote:

> On 10/31/23 11:10, Patrick O'Callaghan wrote:
> > The theory is that you shouldn't have to do anything except configure
> > the printer (in CUPS) to use DNSSD. That in turn depends on Avahi
> > working correctly. Try 'sudo avahi-browse -a -t' to make sure the
> > printer is visible.
>
> I just set up an Epson EcoTank inkjet printer.  Theoretically, it
> supports IPP Everywhere, AirPrint, and driverless printing, but it only
> accepts ESC/P-R datastreams, so color me skeptical about the wonderful
> driverless future.
>
Driverless sounds like a nice concept, but doesn't seem to work for me.  I
deleted the proprietary printer driver for my brother laser hl-l2395dw,
then on KDE try adding a printer.  It does detect the printer in the
"discovered printers" section I see a hll2395dw "driverless" option.  But
if I choose that, I'm prompted to fill in an ip address and some other info
(port?).  So I don't think this is actually working.  Choosing instead
Brother's proprietary driver works and connects via dnssd without asking me
for other info.
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Re: Printer drivers and raw queues are deprecated

[Ian Pilcher]

On 10/31/23 11:10, Patrick O'Callaghan wrote:

The theory is that you shouldn't have to do anything except configure
the printer (in CUPS) to use DNSSD. That in turn depends on Avahi
working correctly. Try 'sudo avahi-browse -a -t' to make sure the
printer is visible.


I just set up an Epson EcoTank inkjet printer.  Theoretically, it
supports IPP Everywhere, AirPrint, and driverless printing, but it only
accepts ESC/P-R datastreams, so color me skeptical about the wonderful
driverless future.

--

Google  Where SkyNet meets Idiocracy


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Re: Printer drivers and raw queues are deprecated

[Tim via users]

On Tue, 2023-10-31 at 11:03 +, Patrick O'Callaghan wrote:
> Clearly there is a driver involved. I think the term just means that no
> additional driver is required. Note that Microsoft recently announced
> that future versions of Windows (IIRC) would not support manufacturer-
> provided drivers, so there appears to be an industry move in this
> direction.

Which, we'd hope would be a good thing...

Instead of each printer having a specific driver to mangle the data
into their idea of how printing should be done, to suit their specific
model of printer, and would only work on operating systems that a
driver had been written for, printers would have to accept data sent to
them in a standard manner by any operating system.

Of course we all know how well Microsoft and standards go together.

They're not alone in that crapfest.  My HP laser printer claims that
you can print a PDF directly.  Just go up to the printer with a PDF on
a USB stick, insert it, and go through some menus to print a local
file.  Print a file without a LAN, perhaps directly print the manual
that came some gadget you bought.  Except that when you get into
debugging why this doesn't actually work, it has to be a specially
created PDF file by their own software.  Bastards!
 
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Re: Printer drivers and raw queues are deprecated

[Patrick O'Callaghan]

On Tue, 2023-10-31 at 08:05 -0500, Michael Hennebry wrote:
> On Tue, 31 Oct 2023, Patrick O'Callaghan wrote:
> 
> > Clearly there is a driver involved. I think the term just means
> > that no
> > additional driver is required. Note that Microsoft recently
> > announced
> > that future versions of Windows (IIRC) would not support
> > manufacturer-
> > provided drivers, so there appears to be an industry move in this
> > direction.
> 
> So, if I wanted to use a printer, e.g. mine,
> that was not support out of the box,
> I would have to change the box,
> i.e. make a custom CUPS?

The theory is that you shouldn't have to do anything except configure
the printer (in CUPS) to use DNSSD. That in turn depends on Avahi
working correctly. Try 'sudo avahi-browse -a -t' to make sure the
printer is visible.

poc
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Re: Printer drivers and raw queues are deprecated

[Michael Hennebry]

On Tue, 31 Oct 2023, Patrick O'Callaghan wrote:


Clearly there is a driver involved. I think the term just means that no
additional driver is required. Note that Microsoft recently announced
that future versions of Windows (IIRC) would not support manufacturer-
provided drivers, so there appears to be an industry move in this
direction.


So, if I wanted to use a printer, e.g. mine,
that was not support out of the box,
I would have to change the box,
i.e. make a custom CUPS?

--
Michael   henne...@mail.cs.ndsu.nodak.edu
"I was just thinking about the life of a pumpkin.  Grow up in the sun,
happily entwined with others, and then someone comes along,
cuts you open, and rips your guts out."  --   Buffy
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Re: Printer drivers and raw queues are deprecated

[Patrick O'Callaghan]

On Mon, 2023-10-30 at 18:11 -0500, Michael Hennebry wrote:
> On Mon, 30 Oct 2023, Patrick O'Callaghan wrote:
> 
> > On Mon, 2023-10-30 at 12:46 -0500, Michael Hennebry wrote:
> > > CUPS wrote:
> > > > Note:Printer drivers and raw queues are deprecated and will
> > > > stop
> > > > working in a
> > > future version of CUPS.
> > > 
> > > Then what?
> > > It wrote that after I installed a Brother HL-L2360DW
> > > using the printer-driver-brlaser-6.2.6-1.fc38.x86_64 package.
> > > It provided the
> > > Brother HL-L2360D series, using brlaser v6 (en)
> > > option under model.
> > > 
> > > If CUPS rejects my printer before it runs out of ink,
> > > will I have another option?
> > 
> > My Brother all-in-one (DCP-L2530DW) works without the proprietary
> > drivers, using the "driverless" Avahi config option (i.e. DNSSD). I
> > assume that's what the CUPS message is referring to.
> 
> Not really sure what driverless means.
> I think DCP-L2530DW was one of the "model"
> options available without the package.
> Had to install a package to get mine.

Clearly there is a driver involved. I think the term just means that no
additional driver is required. Note that Microsoft recently announced
that future versions of Windows (IIRC) would not support manufacturer-
provided drivers, so there appears to be an industry move in this
direction.

poc
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Re: Why is my default printer wrong?

[ToddAndMargo via users]

On 10/30/23 01:31, ToddAndMargo via users wrote:

Hi All,

Fedora 38
cups-2.4.7-1.fc38.x86_64

Why do all my programs default to "Cups-PDF" and not
"HLL2300D".  All Wine and native Linux programs.
And changing it in my programs does not stick.

Many thanks,
-T

/etc/cups/printers.conf


PrinterId 4
UUID urn:uuid:8d86be01-61b0-3452-6e91-ee3dcc9adb2b
Info Cups-PDF
Location Office
MakeModel Generic CUPS-PDF Printer (no options)
DeviceURI cups-pdf:/
State Idle
StateTime 1698651517
ConfigTime 1698531817
Type 8450124
Accepting Yes
Shared Yes
JobSheets none none
QuotaPeriod 0
PageLimit 0
KLimit 0
OpPolicy default
ErrorPolicy stop-printer



PrinterId 15
UUID urn:uuid:19a617e6-961d-36e7-6618-e6d37a74bd43
Info HLL2300D
Location Office
MakeModel Brother HL-L2300D for CUPS
DeviceURI usb://Brother/HL-L2300D%20series?serial=U63878H3N412319
State Idle
StateTime 1698652889
ConfigTime 1698485181
Type 8425492
Accepting Yes
Shared Yes
JobSheets none none
QuotaPeriod 0
PageLimit 0
KLimit 0
OpPolicy default
ErrorPolicy stop-printer



Figured it out.  CUPS forgets to update /etc/cups/lpoptions
Changing B4350 to HLL2300D fixed the issue/

vi /etc/cups/lpoptions
Default HLL2300D



I reported the bug over on Fedora's bugzilla:

CUPS fails to update the efault printer in /etc/cups/lpoptions (edit)
https://bugzilla.redhat.com/show_bug.cgi?id=2247186
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Re: Printer drivers and raw queues are deprecated

[Michael Hennebry]

On Mon, 30 Oct 2023, Patrick O'Callaghan wrote:


On Mon, 2023-10-30 at 12:46 -0500, Michael Hennebry wrote:

CUPS wrote:

Note:Printer drivers and raw queues are deprecated and will stop
working in a

future version of CUPS.

Then what?
It wrote that after I installed a Brother HL-L2360DW
using the printer-driver-brlaser-6.2.6-1.fc38.x86_64 package.
It provided the
Brother HL-L2360D series, using brlaser v6 (en)
option under model.

If CUPS rejects my printer before it runs out of ink,
will I have another option?


My Brother all-in-one (DCP-L2530DW) works without the proprietary
drivers, using the "driverless" Avahi config option (i.e. DNSSD). I
assume that's what the CUPS message is referring to.


Not really sure what driverless means.
I think DCP-L2530DW was one of the "model"
options available without the package.
Had to install a package to get mine.

--
Michael   henne...@mail.cs.ndsu.nodak.edu
"I was just thinking about the life of a pumpkin.  Grow up in the sun,
happily entwined with others, and then someone comes along,
cuts you open, and rips your guts out."  --   Buffy
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Re: Printer drivers and raw queues are deprecated

[Patrick O'Callaghan]

On Mon, 2023-10-30 at 12:46 -0500, Michael Hennebry wrote:
> CUPS wrote:
> > Note:Printer drivers and raw queues are deprecated and will stop
> > working in a 
> future version of CUPS.
> 
> Then what?
> It wrote that after I installed a Brother HL-L2360DW
> using the printer-driver-brlaser-6.2.6-1.fc38.x86_64 package.
> It provided the
> Brother HL-L2360D series, using brlaser v6 (en)
> option under model.
> 
> If CUPS rejects my printer before it runs out of ink,
> will I have another option?

My Brother all-in-one (DCP-L2530DW) works without the proprietary
drivers, using the "driverless" Avahi config option (i.e. DNSSD). I
assume that's what the CUPS message is referring to.

poc
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Re: Printer drivers and raw queues are deprecated

[Neal Becker]

On Mon, Oct 30, 2023 at 1:47 PM Michael Hennebry <
henne...@web.cs.ndsu.nodak.edu> wrote:

> CUPS wrote:
> > Note:Printer drivers and raw queues are deprecated and will stop working
> in a
> future version of CUPS.
>
> Then what?
> It wrote that after I installed a Brother HL-L2360DW
> using the printer-driver-brlaser-6.2.6-1.fc38.x86_64 package.
> It provided the
> Brother HL-L2360D series, using brlaser v6 (en)
> option under model.
>
> If CUPS rejects my printer before it runs out of ink,
> will I have another option?
>
> I used  hll2395dwpdrv-4.0.0-1.i386.rpm from Brother downloads.
-
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Printer drivers and raw queues are deprecated

[Michael Hennebry]

CUPS wrote:
Note:Printer drivers and raw queues are deprecated and will stop working in a 

future version of CUPS.

Then what?
It wrote that after I installed a Brother HL-L2360DW
using the printer-driver-brlaser-6.2.6-1.fc38.x86_64 package.
It provided the
Brother HL-L2360D series, using brlaser v6 (en)
option under model.

If CUPS rejects my printer before it runs out of ink,
will I have another option?

--
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"I was just thinking about the life of a pumpkin.  Grow up in the sun,
happily entwined with others, and then someone comes along,
cuts you open, and rips your guts out."  --   Buffy
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Re: Why is my default printer wrong?

[Tim via users]

On Mon, 2023-10-30 at 01:31 -0700, ToddAndMargo via users wrote:
> Why do all my programs default to "Cups-PDF" and not
> "HLL2300D".  All Wine and native Linux programs.
> And changing it in my programs does not stick.

I've had it where some programs needed me to set a printer in them,
others have pre-selected my default printer.

I wonder if it's a case between things like ZeroConf mDNS discovered
printers being discovered every time, versus CUPS pre-configured
printers.
 
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Why is my default printer wrong?

[ToddAndMargo via users]

Hi All,

Fedora 38
cups-2.4.7-1.fc38.x86_64

Why do all my programs default to "Cups-PDF" and not
"HLL2300D".  All Wine and native Linux programs.
And changing it in my programs does not stick.

Many thanks,
-T

/etc/cups/printers.conf


PrinterId 4
UUID urn:uuid:8d86be01-61b0-3452-6e91-ee3dcc9adb2b
Info Cups-PDF
Location Office
MakeModel Generic CUPS-PDF Printer (no options)
DeviceURI cups-pdf:/
State Idle
StateTime 1698651517
ConfigTime 1698531817
Type 8450124
Accepting Yes
Shared Yes
JobSheets none none
QuotaPeriod 0
PageLimit 0
KLimit 0
OpPolicy default
ErrorPolicy stop-printer



PrinterId 15
UUID urn:uuid:19a617e6-961d-36e7-6618-e6d37a74bd43
Info HLL2300D
Location Office
MakeModel Brother HL-L2300D for CUPS
DeviceURI usb://Brother/HL-L2300D%20series?serial=U63878H3N412319
State Idle
StateTime 1698652889
ConfigTime 1698485181
Type 8425492
Accepting Yes
Shared Yes
JobSheets none none
QuotaPeriod 0
PageLimit 0
KLimit 0
OpPolicy default
ErrorPolicy stop-printer

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Re: Printer settings?

[Alex]

Hi,

On Mon, Aug 14, 2023 at 12:20 PM Tim via users <
users@lists.fedoraproject.org> wrote:

> Alex:
> > Do you mean in the main System Settings? It's not there. Even
> > searching shows no results.
>
> What about typing into the command line:
>
> system-config-printer
>
> Assuming Fedora 38 still uses the same doo-hickey, that was the control
> panel that various Gnome, Mate and probably some other desktops, would
> call up from their menu.
>

That's what needed to be installed. I had forgotten the name of it, but I'm
also surprised it wasn't installed when I installed fedora38.

I also had to install "GNOME Desktop Environment" after the install because
whichever option was chosen by default did not include that, ugh.

I believe I'm now using Cinnamon on GNOME.

Thanks,
Alex
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Re: Printer settings?

[Patrick O'Callaghan]

On Mon, 2023-08-14 at 10:27 -0400, Alex wrote:
> > Applications->System->Print Settings
> > 
> 
> I don't have that menu. I have System Settings, but then nothing
> about
> Printers or Print Settings in that menu.

Sounds like you're using KDE/Plasma (or some other DE different from
Gnome).

If it's Plasma, open System Settings and search for 'printer' in the
search box. It should appear under Hardware.

poc
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Re: Printer settings?

[Tim via users]

Alex:
> Do you mean in the main System Settings? It's not there. Even
> searching shows no results.

What about typing into the command line:

system-config-printer

Assuming Fedora 38 still uses the same doo-hickey, that was the control
panel that various Gnome, Mate and probably some other desktops, would
call up from their menu.

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Re: Printer settings?

[Alex]

On Sun, Aug 13, 2023 at 9:33 PM Geoffrey Leach 
wrote:

> On Sun, 13 Aug 2023 21:21:46 -0400
> Alex  wrote:
>
> > Hi,
> >
> > On Sun, Aug 13, 2023 at 9:14 PM Samuel Sieb  wrote:
> >
> > > On 8/13/23 18:10, Alex wrote:
> > > > Hi, I have a fedora38 desktop install, and when I go to the main
> > > > System Settings menu, there is no option to configure printers in
> > > > the Hardware section.
> > >
> > > It's in the main top-level list.
> > >
> >
> > Do you mean in the main System Settings? It's not there. Even
> > searching shows no results.
> >
> > Thanks,
> > Alex
>
> Applications->System->Print Settings
>

I don't have that menu. I have System Settings, but then nothing about
Printers or Print Settings in that menu.


> You will need to have the CUPS package installed, and the two driver
> packages from Brother.
>

I have all the cups packages already installed. I do think I'm still
missing something, though.

$ rpm -qva|grep cups
cups-libs-2.4.6-1.fc38.x86_64
cups-filesystem-2.4.6-1.fc38.noarch
cups-pk-helper-0.2.7-2.fc38.x86_64
cups-client-2.4.6-1.fc38.x86_64
python3-cups-2.0.1-16.fc38.x86_64
cups-ipptool-2.4.6-1.fc38.x86_64
libcupsfilters-2.0~rc2-1.fc38.x86_64
cups-2.4.6-1.fc38.x86_64
cups-filters-2.0~rc2-1.fc38.x86_64
gutenprint-cups-5.3.4-10.fc38.x86_64
bluez-cups-5.68-1.fc38.x86_64
cups-browsed-2.0~rc2-1.fc38.x86_64
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Re: Printer settings?

[Patrick O'Callaghan]

On Sun, 2023-08-13 at 18:32 -0700, Geoffrey Leach wrote:
> On Sun, 13 Aug 2023 21:21:46 -0400
> Alex  wrote:
> 
> > Hi,
> > 
> > On Sun, Aug 13, 2023 at 9:14 PM Samuel Sieb 
> > wrote:
> > 
> > > On 8/13/23 18:10, Alex wrote:  
> > > > Hi, I have a fedora38 desktop install, and when I go to the
> > > > main
> > > > System Settings menu, there is no option to configure printers
> > > > in
> > > > the Hardware section.  
> > > 
> > > It's in the main top-level list.
> > >  
> > 
> > Do you mean in the main System Settings? It's not there. Even
> > searching shows no results.
> > 
> > Thanks,
> > Alex
> 
> Applications->System->Print Settings
> 
> You will need to have the CUPS package installed, and the two driver
> packages from Brother.

I don't think you need the Brother packages now. I have a DCP-L2530DW
and it works fine with the builtin CUPS driver, including double-sided
printing and scanning.

poc
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Re: Printer settings?

[Samuel Sieb]

On 8/13/23 18:21, Alex wrote:

Hi,

On Sun, Aug 13, 2023 at 9:14 PM Samuel Sieb > wrote:


On 8/13/23 18:10, Alex wrote:
 > Hi, I have a fedora38 desktop install, and when I go to the main
System
 > Settings menu, there is no option to configure printers in the
Hardware
 > section.

It's in the main top-level list.


Do you mean in the main System Settings? It's not there. Even searching 
shows no results.


Are you using a desktop other than Gnome?

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Re: Printer settings?

[Joe Zeff]

On 08/13/2023 07:21 PM, Alex wrote:
Do you mean in the main System Settings? It's not there. Even searching 
shows no results.


Try going to http://127.0.0.1:631/
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Re: Printer settings?

[Geoffrey Leach]

On Sun, 13 Aug 2023 21:21:46 -0400
Alex  wrote:

> Hi,
> 
> On Sun, Aug 13, 2023 at 9:14 PM Samuel Sieb  wrote:
> 
> > On 8/13/23 18:10, Alex wrote:  
> > > Hi, I have a fedora38 desktop install, and when I go to the main
> > > System Settings menu, there is no option to configure printers in
> > > the Hardware section.  
> >
> > It's in the main top-level list.
> >  
> 
> Do you mean in the main System Settings? It's not there. Even
> searching shows no results.
> 
> Thanks,
> Alex

Applications->System->Print Settings

You will need to have the CUPS package installed, and the two driver
packages from Brother.
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Re: Printer settings?

[Alex]

Hi,

On Sun, Aug 13, 2023 at 9:14 PM Samuel Sieb  wrote:

> On 8/13/23 18:10, Alex wrote:
> > Hi, I have a fedora38 desktop install, and when I go to the main System
> > Settings menu, there is no option to configure printers in the Hardware
> > section.
>
> It's in the main top-level list.
>

Do you mean in the main System Settings? It's not there. Even searching
shows no results.

Thanks,
Alex
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Re: Printer settings?

[Samuel Sieb]

On 8/13/23 18:10, Alex wrote:
Hi, I have a fedora38 desktop install, and when I go to the main System 
Settings menu, there is no option to configure printers in the Hardware 
section.


It's in the main top-level list.
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Printer settings?

[Alex]

Hi, I have a fedora38 desktop install, and when I go to the main System
Settings menu, there is no option to configure printers in the Hardware
section.

What package am I missing in order to configure/detect/install new printers?

This is a complete reinstall on the same computer where I had fedora37. I
have a Brother HL-L2370DW series printer.

The printer is available when I try to print from gnome-text-editor, but
not from within Chrome. I think it must be automatically detected each time
I try to print with gedit, but it appears more is needed to be set up with
Chrome, which I would imagine starts with proper CUPS configuration.

I'm aware of the web-browser interface to CUPS, but want to use the GNOME
interface to start instead.

Thanks,
Alex
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Re: fedora38 and Samsung ML-1740 USB Printer

[Alex]

Hi,

Got it working. I did so by installing the PPDs from this site:
https://www.openprinting.org/printer/Samsung/Samsung-ML-1640

It also required the installation of the lsb (linux software base) package
and all dependencies. I then used the printer GUI app thing from Settings
to select the "Select from Database" option and chose the openprinting
driver for the printer from the list.

Seems like something that shouldn't be necessary these days. I'm still
wondering if there's a more expeditious way or more standard way, but this
will do for now.

Thanks,
Alex

On Tue, Jul 11, 2023 at 9:00 PM Alex  wrote:

> Hi,
> I have a Samsung ML-1740 printer connected via USB that I managed to get
> working with fedora37, but after a complete reinstall, I can't remember how
> I did it, nor manage to figure it out.
>
> I thought I located a PPD file, but now can't find one. I also recall
> working with CUPS on the web backend, but I also tried changing some of
> those settings and still can't get it to work.
>
> Sending a document to printer gives every indication it has been printed,
> including a message telling me the document was printed and the printer
> actually warming up like it's going to print, except nothing ever comes out.
>
> It only has a USB connection, so there is no IP address, so I can't use
> IPP or other methods, correct?
>
> The printer is literally 20 years old (manufactured in March, 2004), but
> still works just fine. It does make it tough to configure, though. Any
> ideas greatly appreciated.
>
> Thanks,
> Alex
>
>
>
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fedora38 and Samsung ML-1740 USB Printer

[Alex]

Hi,
I have a Samsung ML-1740 printer connected via USB that I managed to get
working with fedora37, but after a complete reinstall, I can't remember how
I did it, nor manage to figure it out.

I thought I located a PPD file, but now can't find one. I also recall
working with CUPS on the web backend, but I also tried changing some of
those settings and still can't get it to work.

Sending a document to printer gives every indication it has been printed,
including a message telling me the document was printed and the printer
actually warming up like it's going to print, except nothing ever comes out.

It only has a USB connection, so there is no IP address, so I can't use IPP
or other methods, correct?

The printer is literally 20 years old (manufactured in March, 2004), but
still works just fine. It does make it tough to configure, though. Any
ideas greatly appreciated.

Thanks,
Alex
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Re: simple scan default printer?

[ToddAndMargo via users]

On 6/12/23 23:00, ToddAndMargo via users wrote:

Hi All,

Fedora 37
simple-scan-42.5-1.fc37.x86_64

Any way to get Simple Scan to default to a
different printer?  Right now it defaults
to "Print to LPR"

Many thanks,
-T


If it helps, I had CUSS (Common Unix Scanning
System) -- also known as SANE -- configured to
print to LPR.  And that was the only program
I had configured this way.

I have since removed CUSS.  Simple Scan is
just too much easier to use and it works well.

-T

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Re: simple scan default printer?

[Jon LaBadie]

On Wed, Jun 14, 2023 at 05:00:02PM -0700, ToddAndMargo via users wrote:

On 6/13/23 02:56, Patrick O'Callaghan wrote:

On Mon, 2023-06-12 at 23:00 -0700, ToddAndMargo via users wrote:

Hi All,

Fedora 37
simple-scan-42.5-1.fc37.x86_64

Any way to get Simple Scan to default to a
different printer?  Right now it defaults
to "Print to LPR"


I would assume (without checking) that it prints to whatever you have
set as your default printer in your desktop Settings panel.

poc


Xfce never figured that out.

And CUPS does not have a default printer that I can find.


The cups package includes /usr/sbin/lpadmin.

lpadmin has a "-d" option to set a default printer.

The Fedora 38 man page for lpadmin shows the option in
the header but does not describe it in the text.

jl

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Re: simple scan default printer?

[Tim via users]

On Wed, 2023-06-14 at 17:00 -0700, ToddAndMargo via users wrote:
> And CUPS does not have a default printer that I can find.

I can't speak for your current system, but on my older CentOS, going
into <http://localhost:631/printers>, choosing a printer, clicking on
the Administration drop-down gadget, there is a "Set As Server Default"
option.

There's supposed to be a command line method, too:

lpoptions -d name-of-your-preferred-printer

And there may be a GUI in your system that's called up from running:

system-config-printer

I've found there are programs which ignore the default, and always go
their own way.  I've found that appimages won't use CUPS, they'll only
print to printers they've found some other way (probably through
ZeroConf discovery, even though I've tried to kill that as much as
possible), and always defaults to print to PDF.  Any attempt to print
normally just goes into a black hole.
 
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Re: simple scan default printer?

[ToddAndMargo via users]

On 6/13/23 02:56, Patrick O'Callaghan wrote:

On Mon, 2023-06-12 at 23:00 -0700, ToddAndMargo via users wrote:

Hi All,

Fedora 37
simple-scan-42.5-1.fc37.x86_64

Any way to get Simple Scan to default to a
different printer?  Right now it defaults
to "Print to LPR"


I would assume (without checking) that it prints to whatever you have
set as your default printer in your desktop Settings panel.

poc


Xfce never figured that out.

And CUPS does not have a default printer that I can find.

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Re: simple scan default printer?

[Patrick O'Callaghan]

On Mon, 2023-06-12 at 23:00 -0700, ToddAndMargo via users wrote:
> Hi All,
> 
> Fedora 37
> simple-scan-42.5-1.fc37.x86_64
> 
> Any way to get Simple Scan to default to a
> different printer?  Right now it defaults
> to "Print to LPR"

I would assume (without checking) that it prints to whatever you have
set as your default printer in your desktop Settings panel.

poc
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simple scan default printer?

[ToddAndMargo via users]

Hi All,

Fedora 37
simple-scan-42.5-1.fc37.x86_64

Any way to get Simple Scan to default to a
different printer?  Right now it defaults
to "Print to LPR"

Many thanks,
-T


--
~~
Computers are like air conditioners.
They malfunction when you open windows
~~
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F38/Xfce can't rename printer

[Robert Moskowitz]

HP Tools did not recognize my printer that I installed via Print Settings.

So I let HP Tools do its thing to install the printer again.  I then 
deleted the old printer.


Now I want to rename what HP Tools installed "Office_Pro_8600" to just 
HP8600.


When, in Print Settings, I select Printer -> Rename, I get a dialog that 
"Renaming will loose History".  I click OK and nothing happens.  No 
dialog to rename the printer.


How do I rename this printer queue?


thanks

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HP6950 Printer Cartridge protection.

[Ger van Dijck]

Hi all of you,

I have a problem , non Fedora related : Is there a possibility to disable  
the cartridge protection under Windows 10 Prof for the HP6950 printer ? HP  
says that the printer is disigned only for HP cardtidges.


But in the past alternative cartridges did functionate perfect !!!

Any help would be usefull.


Kind regards,


Ger van Dijck.
--
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Re: Duplex Printer Problem

[George N. White III]

On Wed, Sep 7, 2022 at 10:38 AM Jonathan Ryshpan 
wrote:

> On Wed, 2022-09-07 at 08:32 -0300, George N. White III wrote:
>
> On Tue, Sep 6, 2022 at 11:46 PM Jonathan Ryshpan 
> wrote:
>
> For USB, see https://github.com/OpenPrinting/ipp-usb.  The "Issues"
> section has
> examples of troubleshooting on linux:
>
> So there are, but none of them seems to have much to do with my situation.
>
>
> The problems/printer models aren't the same, but some of the
> troubleshooting methods
> could help pin down the problem.  One reason troubleshooting IPP-USB is
> hard (quoting the README):
>
> Unfortunately, the naive implementation, which simply relays a TCP
> connection to USB, does not work. It happens because closing the TCP
> connection on the client side has a useful side effect of discarding all
> data sent to this connection from the server side, but it does not happen
> with USB connections. In the case of USB, all data not received by the
> client will remain in the USB buffers, and the next time the client
> connects to the device, it will receive unexpected data, left from the
> previous abnormally completed request.
>
> Actually, it is an obvious flaw in the IPP-over-USB standard, but we have
> to live with it.
> The easy workaround would be to switch to a network connection.   Opening
> an issue on the ipp-usb
> github site takes effort, but could be a useful contribution to the
> community.
>
>
> This implies that cups needs to communicate with the printer to find out
> something (say whether the
>
printer has duplex capability), but can't because of communication issues
> which would be solved if
>
IPP-USB were working properly.
>

In addition to getting printer capabilities, CUPS needs to send setup data
(e.g., non-duplex request) to
the printer followed by the print data.   The problem for troubleshooting
with USB is that some cleanup is
needed after a failed job/test.

A test would be to change the connection to the printer from USB to TCP/IP,
> i.e. I should disconnect USB,
>
attach Ethernet on the printer, set up the printer for Ethernet and see
> what happens. Is all this correct?
>

TCP/IP is used on ethernet cables and WiFi. Ethernet generally requires a
router with DHCP.  Typical
home internet these days provides a combined modem/router with both wifi
and ethernet, so if you
are using wfi you might have to move the printer close enough to the router
to connect ethernet.

Wireless is also supported by your printer.  Apple Airprint was invented to
allow iPhone and iPad
users to print directly to a printer, This makes my partner (and the stores
that provide printer supplies!)
very happy.   Use whatever your network provides.


>
> I suspect that ipp-usb is not going to help because the HP m255dw printer
> doesn't seem to be supported:
> # ipp-usb check
> Configuration files: OK
> No IPP over USB devices found
>

It is possible that HP has some special sauce for USB printing, but to be
certain you probably
need the help of the ipp-usb exports via their github Issues.

-- 
George N. White III
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Re: Duplex Printer Problem

[Jonathan Ryshpan]

On Wed, 2022-09-07 at 08:32 -0300, George N. White III wrote:
> On Tue, Sep 6, 2022 at 11:46 PM Jonathan Ryshpan 
> wrote:
> > > For USB, see https://github.com/OpenPrinting/ipp-usb.  The
> > > "Issues" section has
> > > examples of troubleshooting on linux:
> > 
> > So there are, but none of them seems to have much to do with my
> > situation.
> 
> 
> The problems/printer models aren't the same, but some of the
> troubleshooting methods
> could help pin down the problem.  One reason troubleshooting IPP-USB
> is hard (quoting the README):
> Unfortunately, the naive implementation, which simply relays a TCP
> connection to USB, does not work. It happens because closing the TCP
> connection on the client side has a useful side effect of discarding
> all data sent to this connection from the server side, but it does not
> happen with USB connections. In the case of USB, all data not received
> by the client will remain in the USB buffers, and the next time the
> client connects to the device, it will receive unexpected data, left
> from the previous abnormally completed request.
> Actually, it is an obvious flaw in the IPP-over-USB standard, but we
> have to live with it.
> The easy workaround would be to switch to a network connection.  
> Opening an issue on the ipp-usb
> github site takes effort, but could be a useful contribution to the
> community.

This implies that cups needs to communicate with the printer to find out
something (say whether the printer has duplex capability), but can't
because of communication issues which would be solved if IPP-USB were
working properly. A test would be to change the connection to the
printer from USB to TCP/IP, i.e. I should disconnect USB, attach
Ethernet on the printer, set up the printer for Ethernet and see what
happens. Is all this correct?

I suspect that ipp-usb is not going to help because the HP m255dw
printer doesn't seem to be supported:
   # ipp-usb check
   Configuration files: OK
   No IPP over USB devices found

-- 
Sincerely Jonathan Ryshpan 

 Today's thought: 
 I can please only one person per day. Today is not 
 your day. Tomorrow isn't looking good either.
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Re: Duplex Printer Problem

[George N. White III]

On Tue, Sep 6, 2022 at 11:46 PM Jonathan Ryshpan 
wrote:

>
> For USB, see https://github.com/OpenPrinting/ipp-usb.  The "Issues"
> section has
> examples of troubleshooting on linux:
>
> So there are, but none of them seems to have much to do with my situation.
>

The problems/printer models aren't the same, but some of the
troubleshooting methods
could help pin down the problem.  One reason troubleshooting IPP-USB is
hard (quoting the README):

Unfortunately, the naive implementation, which simply relays a TCP
connection to USB, does not work. It happens because closing the TCP
connection on the client side has a useful side effect of discarding all
data sent to this connection from the server side, but it does not happen
with USB connections. In the case of USB, all data not received by the
client will remain in the USB buffers, and the next time the client
connects to the device, it will receive unexpected data, left from the
previous abnormally completed request.

Actually, it is an obvious flaw in the IPP-over-USB standard, but we have
to live with it.
The easy workaround would be to switch to a network connection.   Opening
an issue on the ipp-usb
github site takes effort, but could be a useful contribution to the
community.

-- 
George N. White III
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Re: Duplex Printer Problem

[Jonathan Ryshpan]

Thanks very much.
On Tue, 2022-09-06 at 08:07 -0300, George N. White III wrote:
> HP "specs" say it has USB as well as wired or wireless network
> printing and that it
> supports Apple Airprint.  
> 
> Which communications interface are are you using?

USB.

> Airprint comes from IPP, which is the current "driverless" network
> protocol used by
> CUPS (from when CUPS was an Apple project).  There are drivers that
> make USB 
> look like IPP, but I assume those are printer-specific.  Airprint may
> diverge from IPP
> in the future, but HP's specs say this model works with older macOS
> versions, so 
> should support CUPS driverless printing  for ethernet and wifi.
> 
> For USB, see https://github.com/OpenPrinting/ipp-usb.  The "Issues"
> section has
> examples of troubleshooting on linux:
So there are, but none of them seems to have much to do with my
situation.

-- 
Sincerely Jonathan Ryshpan 

 If thousands of volunteers can make an operating system
 that doesn't crash, thousands of highly paid engineers
 should be able to do it, too. Then why don't they?
 -- Al Fasoldt
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Re: Duplex Printer Problem

[Jonathan Ryshpan]

On Tue, 2022-09-06 at 12:36 +0200, Klaus-Peter Schrage wrote:
> FWIW, hp-check gives me just the same errors about missing
> dependencies
> (some details in the log are different because my device HP Color
> LaserJet MFP M277dw includes scanning). So these messages are probably
> useless in your case - as far as I understand it, those dependencies
> are
> essential if you want to BUILD the hp libraries.
This looks very reasonable, except for the message
>  error: 'cups' package is missing or 'cups' service is not running.
Cups certainly seems to be running on my system
   $ systemctl status cups.service  
   ● cups.service - CUPS Scheduler
   Loaded: loaded (/usr/lib/systemd/system/cups.service; disabled;
   vendor preset: disabled)
   Active: active (running) since Tue 2022-09-06 19:08:56 PDT; 15min
   ago
Very mysterious...

> Interesting enough, hp-toolbox tells me that no hp devices can be
> found,
> although I definitely can use my printer/scanner. I found that my
> printer uses "driverless printing" through "IPP Everywhere". So you
> might investigate further in this direction:
> https://docs.fedoraproject.org/en-US/quick-docs/cups-useful-tricks/

hp-toolbox finds my printer without any trouble, not in the console
message but in the GUI.

It's not clear what cups-useful-tricks is about; there seems to be
unstated context. In any case the HP-M255dw is not capable of driverless
operation:

   $ sudo lsusb -v
   ...
   Bus 003 Device 004: ID 03f0:0a70 HP, Inc HP ColorLaserJet M255-M256
   Device Descriptor:
   ...
        bInterfaceClass 7 Printer
    bInterfaceSubClass  1 Printer
    bInterfaceProtocol  2 Bidirectional

The web page indicates that bInterfaceProtocol must be 4 for the printer
to be capable of driverless operation. So it looks like the document is
not relevant to my situation. However I did install ipp-usb (and
reboot), however without any apparent result.

-- 
Sincerely Jonathan Ryshpan 

 Procrastinators do it later.
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Re: Duplex Printer Problem

[George N. White III]

On Tue, Aug 30, 2022 at 11:14 AM Jonathan Ryshpan 
wrote:

> Whenever I try to print from Okular, a box with this message appears:
> There are conflicts in duplex settings. Do you want to fix them?
> And printing is in fact funky: the options for double sided printing:
> Okular->Print->Options
> are strange. The option "Long Side Printing" is selected (though greyed
> out); the option "Off" is selectable, but if selected, no other option can
> be selected afterward. Firefox doesn't allow control of duplex printing
> using its native print dialog, but duplex can be controlled using the
> system dialog.
>
> Does anyone know what's going on or how to fix it.
>
> Printer:
> HP Color Laserjet M255dw
>

HP "specs" say it has USB as well as wired or wireless network printing and
that it
supports Apple Airprint.

Which communications interface are are you using?

Airprint comes from IPP, which is the current "driverless" network protocol
used by
CUPS (from when CUPS was an Apple project).  There are drivers that make
USB
look like IPP, but I assume those are printer-specific.  Airprint may
diverge from IPP
in the future, but HP's specs say this model works with older macOS
versions, so
should support CUPS driverless printing  for ethernet and wifi.

For USB, see https://github.com/OpenPrinting/ipp-usb.  The "Issues" section
has
examples of troubleshooting on linux:

-- 
George N. White III
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Re: Duplex Printer Problem

[Klaus-Peter Schrage]

Am 05.09.22 um 23:11 schrieb Jonathan Ryshpan:

On Tue, 2022-08-30 at 07:14 -0700, Jonathan Ryshpan wrote:

Whenever I try to print from Okular, a box with this message appears:
There are conflicts in duplex settings. Do you want to fix them?
And printing is in fact funky: the options for double sided printing:
Okular->Print->Options
are strange. The option "Long Side Printing" is selected (though
greyed out); the option "Off" is selectable, but if selected, no
other option can be selected afterward. Firefox doesn't allow control
of duplex printing using its native print dialog, but duplex can be
controlled using the system dialog.

Does anyone know what's going on or how to fix it.

Printer:
HP Color Laserjet M255dw

Cups Version:
cups-2.4.2-4.fc36.x86_64

System Info:
Operating System: Fedora Linux 36
KDE Plasma Version: 5.25.4
KDE Frameworks Version: 5.97.0
Qt Version: 5.15.5
Kernel Version: 5.19.4-200.fc36.x86_64 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-4790K CPU @ 4.00GHz
Memory: 15.5 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 4600


I tried running
$ hp-check --run
which appears to be largely undocumented, and which produced the
following errors. The list looks very strange. Does anyone know what's
going on? The entire output is attached as hp-check.log .

---
| SUMMARY |
---

Missing Required Dependencies
-
error: 'cups' package is missing or 'cups' service is not running.
error: 'libjpeg-devel' package is missing/incompatible
error: 'cups-devel' package is missing/incompatible
error: 'cups-devel' package is missing/incompatible
error: 'libusb1-devel' package is missing/incompatible
error: 'sane-backends-devel' package is missing/incompatible
error: 'avahi-devel' package is missing/incompatible
error: 'net-snmp-devel' package is missing/incompatible
error: 'python3-devel' package is missing/incompatible
error: 'libtool' package is missing/incompatible
error: 'rpm-build' package is missing/incompatible

Missing Optional Dependencies
-
error: 'polkit' package is missing/incompatible
error: 'polkit-gnome' package is missing/incompatible
error: 'PKG_FROM_PIP:notify2' package is missing/incompatible

Total Errors: 12
Total Warnings: 0


FWIW, hp-check gives me just the same errors about missing dependencies
(some details in the log are different because my device HP Color
LaserJet MFP M277dw includes scanning). So these messages are probably
useless in your case - as far as I understand it, those dependencies are
essential if you want to BUILD the hp libraries.

Interesting enough, hp-toolbox tells me that no hp devices can be found,
although I definitely can use my printer/scanner. I found that my
printer uses "driverless printing" through "IPP Everywhere". So you
might investigate further in this direction:
https://docs.fedoraproject.org/en-US/quick-docs/cups-useful-tricks/

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Re: Duplex Printer Problem

[Jonathan Ryshpan]

On Tue, 2022-08-30 at 07:14 -0700, Jonathan Ryshpan wrote:
> Whenever I try to print from Okular, a box with this message appears:
>There are conflicts in duplex settings. Do you want to fix them?
> And printing is in fact funky: the options for double sided printing:
>Okular->Print->Options
> are strange. The option "Long Side Printing" is selected (though
> greyed out); the option "Off" is selectable, but if selected, no other
> option can be selected afterward. Firefox doesn't allow control of
> duplex printing using its native print dialog, but duplex can be
> controlled using the system dialog.
> 
> Does anyone know what's going on or how to fix it.
> 
> Printer:
>HP Color Laserjet M255dw
> 
> Cups Version:
>cups-2.4.2-4.fc36.x86_64
> 
> System Info:
>Operating System: Fedora Linux 36
>KDE Plasma Version: 5.25.4
>KDE Frameworks Version: 5.97.0
>Qt Version: 5.15.5
>Kernel Version: 5.19.4-200.fc36.x86_64 (64-bit)
>Graphics Platform: X11
>Processors: 8 × Intel® Core™ i7-4790K CPU @ 4.00GHz
>Memory: 15.5 GiB of RAM
>Graphics Processor: Mesa Intel® HD Graphics 4600

I tried running 
 $ hp-check --run
which appears to be largely undocumented, and which produced the
following errors. The list looks very strange. Does anyone know what's
going on? The entire output is attached as hp-check.log .
   
   ---
   | SUMMARY |
   ---
   
   Missing Required Dependencies
   -
   error: 'cups' package is missing or 'cups' service is not running.
   error: 'libjpeg-devel' package is missing/incompatible  
   error: 'cups-devel' package is missing/incompatible  
   error: 'cups-devel' package is missing/incompatible  
   error: 'libusb1-devel' package is missing/incompatible  
   error: 'sane-backends-devel' package is missing/incompatible  
   error: 'avahi-devel' package is missing/incompatible  
   error: 'net-snmp-devel' package is missing/incompatible  
   error: 'python3-devel' package is missing/incompatible  
   error: 'libtool' package is missing/incompatible  
   error: 'rpm-build' package is missing/incompatible  
   
   Missing Optional Dependencies
   -
   error: 'polkit' package is missing/incompatible  
   error: 'polkit-gnome' package is missing/incompatible  
   error: 'PKG_FROM_PIP:notify2' package is missing/incompatible  
   
   Total Errors: 12
   Total Warnings: 0
   

-- 
Sincerely Jonathan Ryshpan 

 The time you enjoy wasting is not wasted time.
 --Bertrand Russell
hp-check[44389]: info: :
hp-check[44389]: info: :[01mHP Linux Imaging and Printing System (ver. 3.22.6)[0m
hp-check[44389]: info: :[01mDependency/Version Check Utility ver. 15.1[0m
hp-check[44389]: info: :
hp-check[44389]: info: :Copyright (c) 2001-18 HP Development Company, LP
hp-check[44389]: info: :This software comes with ABSOLUTELY NO WARRANTY.
hp-check[44389]: info: :This is free software, and you are welcome to distribute it
hp-check[44389]: info: :under certain conditions. See COPYING file for more details.
hp-check[44389]: info: :
hp-check[44389]: info: :[01mNote: hp-check can be run in three modes:[0m
hp-check[44389]: info: :1. Compile-time check mode (-c or --compile): Use this mode before compiling the HPLIP supplied tarball (.tar.gz or .run) to determine if the proper dependencies are  
hp-check[44389]: info: :installed to successfully compile HPLIP.   
hp-check[44389]: info: :2. Run-time check mode (-r or --run): Use this mode to determine if a distro supplied package (.deb, .rpm, etc) or an already built HPLIP supplied tarball has the proper  
hp-check[44389]: info: :dependencies installed to successfully run.
hp-check[44389]: info: :3. Both compile- and run-time check mode (-b or --both) (Default): This mode will check both of the above cases (both compile- and run-time dependencies). 
hp-check[44389]: info: :
hp-check[44389]: info: :Check types:   
hp-check[44389]: info: :a. EXTERNALDEP - External Dependencies 
hp-check[44389]: info: :b. GENERALDEP - General Dependencies (required both at compile and run time) 

Re: Duplex Printer Problem

[Klaus-Peter Schrage]

Am 30.08.22 um 16:14 schrieb Jonathan Ryshpan:

Whenever I try to print from Okular, a box with this message appears:
There are conflicts in duplex settings. Do you want to fix them?
And printing is in fact funky: the options for double sided printing:
Okular->Print->Options
are strange. The option "Long Side Printing" is selected (though
greyed out); the option "Off" is selectable, but if selected, no other
option can be selected afterward. Firefox doesn't allow control of
duplex printing using its native print dialog, but duplex can be
controlled using the system dialog.

Does anyone know what's going on or how to fix it.

Printer:
HP Color Laserjet M255dw

Cups Version:
cups-2.4.2-4.fc36.x86_64


No such problem with a may be similar device:
HP Color Laserjet MFP M277dw
(in contradiction to yours, it's a multifunction printer, as the name
implies).

In Okular's printing dialogue, "off" is selected in double side
printing, but I can select long/short side binding (and it works).
So, I am sorry to say that I don't know how to fix your problem :-(
Yours
Klaus-Peter

Operating System: Fedora Linux 36
KDE Plasma Version: 5.25.4
KDE Frameworks Version: 5.96.0
Qt Version: 5.15.5
Kernel Version: 5.18.16-200.fc36.x86_64 (64-bit)
Graphics Platform: X11
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Duplex Printer Problem

[Jonathan Ryshpan]

Whenever I try to print from Okular, a box with this message appears:
   There are conflicts in duplex settings. Do you want to fix them?
And printing is in fact funky: the options for double sided printing:
   Okular->Print->Options
are strange. The option "Long Side Printing" is selected (though greyed
out); the option "Off" is selectable, but if selected, no other option
can be selected afterward. Firefox doesn't allow control of duplex
printing using its native print dialog, but duplex can be controlled
using the system dialog.

Does anyone know what's going on or how to fix it.

Printer:
   HP Color Laserjet M255dw

Cups Version:
   cups-2.4.2-4.fc36.x86_64

System Info:
   Operating System: Fedora Linux 36
   KDE Plasma Version: 5.25.4
   KDE Frameworks Version: 5.97.0
   Qt Version: 5.15.5
   Kernel Version: 5.19.4-200.fc36.x86_64 (64-bit)
   Graphics Platform: X11
   Processors: 8 × Intel® Core™ i7-4790K CPU @ 4.00GHz
   Memory: 15.5 GiB of RAM
   Graphics Processor: Mesa Intel® HD Graphics 4600
   Manufacturer: ASUS

-- 
Sincerely Jonathan Ryshpan 

 Three percent exceeds 2 percent by 50 percent, 
 not by 1 percent.
 --Edward Denison
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Re: use a printer whose drivers do not exist ..

[Angelo Moreschini]

thank you...

I'll work around your informations and suggestion
I'll give you a feedback about ...

On Sun, Jun 26, 2022 at 10:03 AM Tim via users <
users@lists.fedoraproject.org> wrote:

> Hi Angelo
>
> > I recently bought a pantum p2500 printer.
> > I was able to install it, and can use it from OS Windows (dual boot).
> >
> > I use Fedora ..., and the drivers available for linux OS are for
> > ubuntu only .. (Pantum Ubuntu Driver V1.1.84-1).
>
> That's a GDI (Graphical Device Interface) kind of printer, only
> designed to work on Windows.  It relies on Windows generating the
> entire bitmap of what will be printed, in the manner that particular
> printer requires, then dumping that to the printer, along with some
> instructions, but most of the work is done on the computer.  With a
> windows driver handling the specifics of that particular printer.
>
> As far as I can see, GDI isn't like a common printer language, it just
> means a bitmap graphics dump is done on the computer to the printer.
> It doesn't matter if you printing pictures or just plain text, the
> computer generates the page as a huge bitmap and sends that to the
> printer.  Brute force and ignorance.
>
> When it comes to other printer languages, if you send text to print,
> the printer is sent that text along with, font, sizing and positioning,
> instructions.  Very quick to print.  Same kind of thing with printing
> images, send the image along with print layout instructions.
>
> > N.B. I had also thought about using Pantum 2500 as a network printer
> > and using it through Windows .. but I have doubts that it will work,
> > because (I think it is necessary that windows) is running or Linuz
> > can call the print server ..
>
> You'd need Windows to do a conversion between some common printer
> language (that you could send to Windows) for it to convert to what
> that printer requires.  I have no clues on how to approach that.
>
> Have a look at this thread, see if you can follow the info about
> extracting the files from the debian package and manually putting them
> where they're needed on Fedora:
>
>
> https://www.linuxquestions.org/questions/linux-hardware-18/pantum-p2207-laser-printer-install-problems-with-fedora-4175660311/
>
> The second to last comment sounds promising.
>
> --
>
> uname -rsvp
> Linux 3.10.0-1160.66.1.el7.x86_64 #1 SMP Wed May 18 16:02:34 UTC 2022
> x86_64
>
> Boilerplate:  All unexpected mail to my mailbox is automatically deleted.
> I will only get to see the messages that are posted to the mailing list.
>
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Re: use a printer whose drivers do not exist ..

[Tim via users]

Hi Angelo

> I recently bought a pantum p2500 printer.
> I was able to install it, and can use it from OS Windows (dual boot).
> 
> I use Fedora ..., and the drivers available for linux OS are for
> ubuntu only .. (Pantum Ubuntu Driver V1.1.84-1).

That's a GDI (Graphical Device Interface) kind of printer, only
designed to work on Windows.  It relies on Windows generating the
entire bitmap of what will be printed, in the manner that particular
printer requires, then dumping that to the printer, along with some
instructions, but most of the work is done on the computer.  With a
windows driver handling the specifics of that particular printer.

As far as I can see, GDI isn't like a common printer language, it just
means a bitmap graphics dump is done on the computer to the printer. 
It doesn't matter if you printing pictures or just plain text, the
computer generates the page as a huge bitmap and sends that to the
printer.  Brute force and ignorance.

When it comes to other printer languages, if you send text to print,
the printer is sent that text along with, font, sizing and positioning,
instructions.  Very quick to print.  Same kind of thing with printing
images, send the image along with print layout instructions.

> N.B. I had also thought about using Pantum 2500 as a network printer
> and using it through Windows .. but I have doubts that it will work,
> because (I think it is necessary that windows) is running or Linuz
> can call the print server ..

You'd need Windows to do a conversion between some common printer
language (that you could send to Windows) for it to convert to what
that printer requires.  I have no clues on how to approach that.

Have a look at this thread, see if you can follow the info about
extracting the files from the debian package and manually putting them
where they're needed on Fedora:

https://www.linuxquestions.org/questions/linux-hardware-18/pantum-p2207-laser-printer-install-problems-with-fedora-4175660311/

The second to last comment sounds promising.

-- 
 
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use a printer whose drivers do not exist ..

[Angelo Moreschini]

Hi,

I recently bought a pantum p2500 printer.
I was able to install it, and can use it from OS Windows (dual boot).

I use Fedora ..., and the drivers available for linux OS are for ubuntu
only .. (Pantum Ubuntu Driver V1.1.84-1).

I tried to do the installation using that driver but, after having
installed it , the printer regularly, the printing is not performed .

the message is given that the job is sent to the printer .. but the print
is not performed ..

I would like to have suggestions on how to print this Pantum 200 for which
drivers for fedora are not available ...

N.B. I had also thought about using Pantum 2500 as a network printer and
using it through Windows .. but I have doubts that it will work, because (I
think it is necessary that windows) is running or Linuz can call the print
server ..

I would like to get some help , in orderto do my printer could work on
fedora
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Re: Configuring a printer with DNS-SD

[George N. White III]

On Fri, Jun 24, 2022 at 2:40 AM Jon LaBadie  wrote:

> On Fri, Jun 24, 2022 at 02:24:37PM +0930, Tim via users wrote:
> >On Thu, 2022-06-23 at 13:15 -0400, Jon LaBadie wrote:
> >> I have a 10+ year old Ricoh 3500N color laser that claims to
> >> accept PDF files.  It is on my lan as host "R3500", a postscript
> >> printer and connects using CUPS and an IPP socket.
> >>
> >> I never considered whether the cups drivers were converting my
> >> PDF files to PS before transmitting.
>

PostScript is a full programming language, so it is much harder to provide
security for PostScript:
https://www.theregister.com/2017/01/31/postscript_bug/,
PDF can embed scripts, but those are more of an issue for viewers
than low-end printers.

PDF has better support for the Unicode fonts commonly used for
non-Western language documents (for me, using English, but with
colleagues from all over, names of people and places are
problematic for PostScript producing applications).

-- 
George N. White III
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Re: Configuring a printer with DNS-SD

[Jon LaBadie]

On Fri, Jun 24, 2022 at 02:24:37PM +0930, Tim via users wrote:

On Thu, 2022-06-23 at 13:15 -0400, Jon LaBadie wrote:

I have a 10+ year old Ricoh 3500N color laser that claims to
accept PDF files.  It is on my lan as host "R3500", a postscript
printer and connects using CUPS and an IPP socket.

I never considered whether the cups drivers were converting my
PDF files to PS before transmitting.


In my case, I just tried sneakernetting PDF files to it over USB
(mine's a similarly vintage HP LaserJet P3015).

In the past, I remember CUPS was rather good at detecting whether it
was being sent prepared data that could go direct to the printer, or it
was receiving Linux internal printing instructions that had to go
through the driver.  Though, as far as I knew, that was detecting
print-ready PostScript, or the printers own page language.

There was also the option of manually setting up a RAW queue, where you
set print-ready data to it, and it just passed it along to the printer.



So today I tried using netcat to send PDF files directly to the
printer

   $ nc R3500 {port_number} < {pdf_file}

When I used port 631 (IPP) I got HTTP errors (400 BAD REQEUEST)

But when I used port 9100 (JetDirect) 5 different pdf files of
varying complexity printed properly.


That makes sense.  The IPP port simply expecting the usual data, it's
special port may be more versatile.

Out of curiosity, if you pipe a PostScript file through to either port,
does it handle that?  (Assuming the printer supports that format, in
the first place.)


I've stuck with PS capable printers for over 30 years, since the 
LaserJet III?  Was it III+ or IIIs, something like that.


My Ricoh 3500 handled netcat'ed postscript files similarly to pdf
file.  I.e.  sent to port 9100 (JetDirect) it printed properly.
Sent to port 631 (IPP) I got an "HTTP/1.1 400 Bad Request" error.


--
Jon H. LaBadie  jo...@jgcomp.com
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Re: Configuring a printer with DNS-SD

[Tim via users]

On Thu, 2022-06-23 at 13:15 -0400, Jon LaBadie wrote:
> I have a 10+ year old Ricoh 3500N color laser that claims to
> accept PDF files.  It is on my lan as host "R3500", a postscript
> printer and connects using CUPS and an IPP socket.
> 
> I never considered whether the cups drivers were converting my
> PDF files to PS before transmitting.

In my case, I just tried sneakernetting PDF files to it over USB
(mine's a similarly vintage HP LaserJet P3015).

In the past, I remember CUPS was rather good at detecting whether it
was being sent prepared data that could go direct to the printer, or it
was receiving Linux internal printing instructions that had to go
through the driver.  Though, as far as I knew, that was detecting
print-ready PostScript, or the printers own page language.

There was also the option of manually setting up a RAW queue, where you
set print-ready data to it, and it just passed it along to the printer.


> So today I tried using netcat to send PDF files directly to the
> printer
> 
>$ nc R3500 {port_number} < {pdf_file}
> 
> When I used port 631 (IPP) I got HTTP errors (400 BAD REQEUEST)
> 
> But when I used port 9100 (JetDirect) 5 different pdf files of
> varying complexity printed properly.

That makes sense.  The IPP port simply expecting the usual data, it's
special port may be more versatile.

Out of curiosity, if you pipe a PostScript file through to either port,
does it handle that?  (Assuming the printer supports that format, in
the first place.)
 
-- 
 
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Re: Configuring a printer with DNS-SD

[Jon LaBadie]

On Thu, Jun 23, 2022 at 09:30:38PM +0930, Tim via users wrote:

Tim:

I have a HP printer in that boat.  It proudly proclaims direct PDF
printing (send it a PDF file, or plug a USB into the front with a
PDF on it).  But after a lot of digging around you find that it only
supports a special PDF created by their driver program, no other
PDF files are supported.


Patrick O'Callaghan wrote:

So Non-Portable Document Format ...


The ironies of commercial decisions...



I have a 10+ year old Ricoh 3500N color laser that claims to
accept PDF files.  It is on my lan as host "R3500", a postscript
printer and connects using CUPS and an IPP socket.

I never considered whether the cups drivers were converting my
PDF files to PS before transmitting.  So today I tried using
netcat to send PDF files directly to the printer

  $ nc R3500 {port_number} < {pdf_file}

When I used port 631 (IPP) I got HTTP errors (400 BAD REQEUEST)

But when I used port 9100 (JetDirect) 5 different pdf files of
varying complexity printed properly.

Jon

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Re: Configuring a printer with DNS-SD

[Patrick O'Callaghan]

On Thu, 2022-06-23 at 12:41 +0100, Patrick O'Callaghan wrote:
> $ avahi-browse -r _printer._tcp
> + enp4s0 IPv4 Brother DCP-7055W    
> _printer._tcp    local
> + enp4s0 IPv6 Brother DCP-7055W @ Bree 
> _printer._tcp    local
> + enp4s0 IPv4 Brother DCP-7055W @ Bree 
> _printer._tcp    local
> + lo IPv4 Brother DCP-7055W @ Bree 
> _printer._tcp    local
> = enp4s0 IPv6 Brother DCP-7055W @ Bree 
> _printer._tcp    local
>    hostname = [Bree.local]
>    address = [fe80::f568:96d8:1d91:c12e]
>    port = [0]
>    txt = []
> = enp4s0 IPv4 Brother DCP-7055W @ Bree 
> _printer._tcp    local
>    hostname = [Bree.local]
>    address = [192.168.178.21]
>    port = [0]
>    txt = []
> = lo IPv4 Brother DCP-7055W @ Bree 
> _printer._tcp    local
>    hostname = [Bree.local]
>    address = [127.0.0.1]
>    port = [0]
>    txt = []
> = enp4s0 IPv4 Brother DCP-7055W    
> _printer._tcp    local
>    hostname = [BRN008092BBFAB5.local]
>    address = [192.168.178.26]
>    port = [515]
>    txt = ["TBCP=F" "Transparent=T" "Binary=T" "PaperCustom=T"
> "Duplex=F" "Copies=T" "Color=F" "usb_MDL=DCP-7055W" "usb_MFG=Brother"
> "priority=75" "adminurl=http://BRN008092BBFAB5.local./";
> "product=(Brother DCP-7055W)" "ty=Brother DCP-7055W"
> "rp=duerqxesz5090"
> "pdl=application/vnd.brother-hbp" "qtotal=1" "txtvers=1"]
> 
> 
> poc

Also:

$ avahi-browse -t -a|grep Brother
+ enp4s0 IPv6 Brother DCP-7055W @ Bree  _ipps._tcp  
 local
+ enp4s0 IPv4 Brother DCP-7055W @ Bree  _ipps._tcp  
 local
+ lo IPv4 Brother DCP-7055W @ Bree  _ipps._tcp  
 local
+ enp4s0 IPv6 Brother DCP-7055W @ Bree  _ipp._tcp   
 local
+ enp4s0 IPv4 Brother DCP-7055W @ Bree  _ipp._tcp   
 local
+ enp4s0 IPv4 Brother DCP-7055W _ipp._tcp   
 local
+ lo IPv4 Brother DCP-7055W @ Bree  _ipp._tcp   
 local
+ enp4s0 IPv6 Brother DCP-7055W @ Bree  _printer._tcp   
 local
+ enp4s0 IPv4 Brother DCP-7055W @ Bree  _printer._tcp   
 local
+ enp4s0 IPv4 Brother DCP-7055W _printer._tcp   
 local
+ lo IPv4 Brother DCP-7055W @ Bree  _printer._tcp   
 local
+ enp4s0 IPv4 Brother DCP-7055W _http._tcp  
 local
+ enp4s0 IPv4 Brother DCP-7055W 
_pdl-datastream._tcp local

However as I mentioned separately, it's now working after reconfiguring
as LPD rather than IPP. No idea why but I'll take it.

poc
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Re: Configuring a printer with DNS-SD

[Tim via users]

Tim:
>> I have a HP printer in that boat.  It proudly proclaims direct PDF
>> printing (send it a PDF file, or plug a USB into the front with a
>> PDF on it).  But after a lot of digging around you find that it only
>> supports a special PDF created by their driver program, no other
>> PDF files are supported.

Patrick O'Callaghan wrote:
> So Non-Portable Document Format ...

The ironies of commercial decisions...

I suspect they went with something like that because the infrastructure
was there for them to start with (creating a standalone file for
sneakernet, people are used to the idea of a print to PDF file option,
and they may have used the existing code to start from).  But I can't
imagine why they didn't just go with standard PDF files, perhaps some
Adobe fees they didn't want to pay.

I recall years ago one of the print to file options in programs being
print to a PostScript file.  I don't see that any more.

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Re: Configuring a printer with DNS-SD

[Patrick O'Callaghan]

On Thu, 2022-06-23 at 07:45 -0300, George N. White III wrote:
> On Wed, Jun 22, 2022 at 6:27 PM Patrick O'Callaghan
> 
> wrote:
> 
> > On Wed, 2022-06-22 at 14:01 -0300, George N. White III wrote:
> > > On Wed, Jun 22, 2022 at 12:43 PM Doug Herr
> > > 
> > > wrote:
> > > 
> > > > On Wed, Jun 22, 2022, at 8:01 AM, Doug Herr wrote:
> > > > > But, I checked my virtual machine to see how it is connecting
> > > > > to
> > > > > the
> > > > printer...
> > > > > 
> > > > > Brother_DCP-L2550DW_series
> > > > 
> > > 
> > > This seems to be a much newer printer and does have Apple
> > > AirPrint.
> > 
> > Mine doesn't show Airprint but does show IPP (as well as FTP, LPD
> > etc.)
> > 
> 
> Not sure where you see IPP and not AirPrint -- do you mean the
> printer's
> http
> configuration status page or the mdns entry?

Yes.

> AirPrint shows up as IPP in
> mdns.
> 
> You can use:
> 
>  % avahi-browse -r _printer._tcp
> +   wlo1 IPv4 Canon MG7500 series  
> _printer._tcp
>  local
> + enp1s0 IPv4 Canon MG7500 series  
> _printer._tcp
>  local
> =   wlo1 IPv4 Canon MG7500 series  
> _printer._tcp
>  local
>    hostname = [DBF1D000.local]
>    address = [192.168.2.244]
>    port = [515]
>    txt = ["Fax=F" "Scan=T" "Duplex=T" "Color=T"
> "UUID=--1000-8000-D8492FDBF1D0" "mac=D8:49:2F:DB:F1:D0"
> "usb_MDL=MG7500 series" "usb_MFG=Canon"
> "adminurl=http://DBF1D000.local.";
> "note=" "pdl=application/octet-stream" "product=(Canon MG7500
> series)"
> "ty=Canon MG7500 series" "priority=60" "qtotal=1" "rp=auto"
> "txtvers=1"]
> = enp1s0 IPv4 Canon MG7500 series  
> _printer._tcp
>  local
>    hostname = [DBF1D000.local]
>    address = [192.168.2.244]
>    port = [515]
>    txt = ["Fax=F" "Scan=T" "Duplex=T" "Color=T"
> "UUID=--1000-8000-D8492FDBF1D0" "mac=D8:49:2F:DB:F1:D0"
> "usb_MDL=MG7500 series" "usb_MFG=Canon"
> "adminurl=http://DBF1D000.local.";
> "note=" "pdl=application/octet-stream" "product=(Canon MG7500
> series)"
> "ty=Canon MG7500 series" "priority=60" "qtotal=1" "rp=auto"
> "txtvers=1"]
> ^CGot SIGINT, quitting.
> 
$ avahi-browse -r _printer._tcp
+ enp4s0 IPv4 Brother DCP-7055W
_printer._tcplocal
+ enp4s0 IPv6 Brother DCP-7055W @ Bree 
_printer._tcplocal
+ enp4s0 IPv4 Brother DCP-7055W @ Bree 
_printer._tcplocal
+ lo IPv4 Brother DCP-7055W @ Bree 
_printer._tcplocal
= enp4s0 IPv6 Brother DCP-7055W @ Bree 
_printer._tcplocal
   hostname = [Bree.local]
   address = [fe80::f568:96d8:1d91:c12e]
   port = [0]
   txt = []
= enp4s0 IPv4 Brother DCP-7055W @ Bree 
_printer._tcplocal
   hostname = [Bree.local]
   address = [192.168.178.21]
   port = [0]
   txt = []
= lo IPv4 Brother DCP-7055W @ Bree 
_printer._tcplocal
   hostname = [Bree.local]
   address = [127.0.0.1]
   port = [0]
   txt = []
= enp4s0 IPv4 Brother DCP-7055W
_printer._tcplocal
   hostname = [BRN008092BBFAB5.local]
   address = [192.168.178.26]
   port = [515]
   txt = ["TBCP=F" "Transparent=T" "Binary=T" "PaperCustom=T"
"Duplex=F" "Copies=T" "Color=F" "usb_MDL=DCP-7055W" "usb_MFG=Brother"
"priority=75" "adminurl=http://BRN008092BBFAB5.local./";
"product=(Brother DCP-7055W)" "ty=Brother DCP-7055W" "rp=duerqxesz5090"
"pdl=application/vnd.brother-hbp" "qtotal=1" "txtvers=1"]


poc
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Re: Configuring a printer with DNS-SD

[George N. White III]

On Wed, Jun 22, 2022 at 6:27 PM Patrick O'Callaghan 
wrote:

> On Wed, 2022-06-22 at 14:01 -0300, George N. White III wrote:
> > On Wed, Jun 22, 2022 at 12:43 PM Doug Herr
> > 
> > wrote:
> >
> > > On Wed, Jun 22, 2022, at 8:01 AM, Doug Herr wrote:
> > > > But, I checked my virtual machine to see how it is connecting to
> > > > the
> > > printer...
> > > >
> > > > Brother_DCP-L2550DW_series
> > >
> >
> > This seems to be a much newer printer and does have Apple AirPrint.
>
> Mine doesn't show Airprint but does show IPP (as well as FTP, LPD etc.)
>

Not sure where you see IPP and not AirPrint -- do you mean the printer's
http
configuration status page or the mdns entry?  AirPrint shows up as IPP in
mdns.

You can use:

 % avahi-browse -r _printer._tcp
+   wlo1 IPv4 Canon MG7500 series   _printer._tcp
 local
+ enp1s0 IPv4 Canon MG7500 series   _printer._tcp
 local
=   wlo1 IPv4 Canon MG7500 series   _printer._tcp
 local
   hostname = [DBF1D000.local]
   address = [192.168.2.244]
   port = [515]
   txt = ["Fax=F" "Scan=T" "Duplex=T" "Color=T"
"UUID=--1000-8000-D8492FDBF1D0" "mac=D8:49:2F:DB:F1:D0"
"usb_MDL=MG7500 series" "usb_MFG=Canon" "adminurl=http://DBF1D000.local.";
"note=" "pdl=application/octet-stream" "product=(Canon MG7500 series)"
"ty=Canon MG7500 series" "priority=60" "qtotal=1" "rp=auto" "txtvers=1"]
= enp1s0 IPv4 Canon MG7500 series   _printer._tcp
 local
   hostname = [DBF1D000.local]
   address = [192.168.2.244]
   port = [515]
   txt = ["Fax=F" "Scan=T" "Duplex=T" "Color=T"
"UUID=--1000-8000-D8492FDBF1D0" "mac=D8:49:2F:DB:F1:D0"
"usb_MDL=MG7500 series" "usb_MFG=Canon" "adminurl=http://DBF1D000.local.";
"note=" "pdl=application/octet-stream" "product=(Canon MG7500 series)"
"ty=Canon MG7500 series" "priority=60" "qtotal=1" "rp=auto" "txtvers=1"]
^CGot SIGINT, quitting.

-- 
George N. White III
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Re: Configuring a printer with DNS-SD

[George N. White III]

On Thu, Jun 23, 2022 at 6:42 AM Patrick O'Callaghan 
wrote:

> On Thu, 2022-06-23 at 13:02 +0930, Tim via users wrote:
> > On Wed, 2022-06-22 at 14:01 -0300, George N. White III wrote:
> > > AirPrint was introduced in 2011 to support iPads.
> > > https://openprinting.github.io/driverless/01-standards-and-their-pdls/
> > > summarizes the differences in the various Driverless Printing
> > > implementations.  PDF is supported across the board, but there are
> > > several raster formats and also PDFm which is viewable with PDF
> > > viewers, but tailored for the capabilities of specific printer
> > > models.
> >
> > I have a HP printer in that boat.  It proudly proclaims direct PDF
> > printing (send it a PDF file, or plug a USB into the front with a PDF
> > on it).  But after a lot of digging around you find that it only
> > supports a special PDF created by their driver program, no other PDF
> > files are supported.
>
> So Non-Portable Document Format ...
>

PDFm is supposed to work with PDF viewers.  I assume it just adds
printer-specific metadata:
things like which paper tray, duplex (double-sided) long or short edge
binding, collating, stapling,
etc.

-- 
George N. White III
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Re: Configuring a printer with DNS-SD - SOLVED (?)

[Patrick O'Callaghan]

On Wed, 2022-06-22 at 12:32 +0100, Patrick O'Callaghan wrote:
> (See ... for context)
> 
> I have a Brother All-in-one wireless laser printer/scanner which has
> worked for years using the manufacturer's driver blob. I now want to
> configure it using the printer-driver-brlaser package from the Fedora
> repo.
> 
> I've uninstalled the original Brother driver and deleted the printer
> config using the CUPS interface.
> 
> I then added a new printer using the KDE System Settings widget, and
> attempted to print a test page. This appears to go through, but then
> the queue status shows "Unable to locate printer".
> 
> I deleted that configuration and tried again using the CUPS web
> interface. This shows up as:
> 
> dnssd://Brother%20DCP-7055W._ipp._tcp.local/
> 
> Printing a test page again shows "Unable to locate printer". This
> happens both using the generic IPP driver and the specific model
> driver
> from the RPM package.
> 
> The CUPS systemd service and AVAHI daemon are both running, as is
> systemd-resolved, which handles DNS-SD (I reloaded the latter just in
> case.)
> 
> I'm out of ideas. To repeat: both printing and scanning work
> correctly
> with the manufacturer's driver, so it's not a hardware or connection
> problem.

I deleted and reconfigured, this time using the JetDirect option rather
than IPP:

dnssd://Brother%20DCP-7055W._printer._tcp.local/

This seems to work, touch wood.

poc
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Re: Configuring a printer with DNS-SD

[Patrick O'Callaghan]

On Thu, 2022-06-23 at 13:02 +0930, Tim via users wrote:
> On Wed, 2022-06-22 at 14:01 -0300, George N. White III wrote:
> > AirPrint was introduced in 2011 to support iPads.  
> > https://openprinting.github.io/driverless/01-standards-and-their-pdls/
> > summarizes the differences in the various Driverless Printing
> > implementations.  PDF is supported across the board, but there are
> > several raster formats and also PDFm which is viewable with PDF
> > viewers, but tailored for the capabilities of specific printer
> > models.
> 
> I have a HP printer in that boat.  It proudly proclaims direct PDF
> printing (send it a PDF file, or plug a USB into the front with a PDF
> on it).  But after a lot of digging around you find that it only
> supports a special PDF created by their driver program, no other PDF
> files are supported.

So Non-Portable Document Format ...

poc
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Re: Configuring a printer with DNS-SD

[Tim via users]

On Wed, 2022-06-22 at 14:01 -0300, George N. White III wrote:
> AirPrint was introduced in 2011 to support iPads.  
> https://openprinting.github.io/driverless/01-standards-and-their-pdls/
> summarizes the differences in the various Driverless Printing
> implementations.  PDF is supported across the board, but there are
> several raster formats and also PDFm which is viewable with PDF
> viewers, but tailored for the capabilities of specific printer
> models.

I have a HP printer in that boat.  It proudly proclaims direct PDF
printing (send it a PDF file, or plug a USB into the front with a PDF
on it).  But after a lot of digging around you find that it only
supports a special PDF created by their driver program, no other PDF
files are supported.
 
-- 
 
uname -rsvp
Linux 3.10.0-1160.66.1.el7.x86_64 #1 SMP Wed May 18 16:02:34 UTC 2022 x86_64
 
Boilerplate:  All unexpected mail to my mailbox is automatically deleted.
I will only get to see the messages that are posted to the mailing list.
 
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Re: Configuring a printer with DNS-SD

[Patrick O'Callaghan]

On Wed, 2022-06-22 at 14:01 -0300, George N. White III wrote:
> On Wed, Jun 22, 2022 at 12:43 PM Doug Herr
> 
> wrote:
> 
> > On Wed, Jun 22, 2022, at 8:01 AM, Doug Herr wrote:
> > > But, I checked my virtual machine to see how it is connecting to
> > > the
> > printer...
> > > 
> > > Brother_DCP-L2550DW_series
> > 
> 
> This seems to be a much newer printer and does have Apple AirPrint.

Mine doesn't show Airprint but does show IPP (as well as FTP, LPD etc.)

poc
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Re: Configuring a printer with DNS-SD

[Patrick O'Callaghan]

On Wed, 2022-06-22 at 11:35 -0300, George N. White III wrote:
> > I deleted that configuration and tried again using the CUPS web
> > interface. This shows up as:
> > 
> > dnssd://Brother%20DCP-7055W._ipp._tcp.local/
> > 
> 
> I suspect this detection doesn't adequately check the details of the
> IPP support.  Given the age of the printer, IPP may not be
> implemented
> "properly" by current standards.
> 
> 
> > Printing a test page again shows "Unable to locate printer". This
> > happens both using the generic IPP driver and the specific model
> > driver
> > from the RPM package.
> > 
> 
> I looked at the Brother DCP-7055W Advanced User's Guide, which is
> dated
> 2012.   I can't see any mention of IPP or AirPrint.

The User's Guide and Networking Guide are both pretty basic and mostly
talk about using the manufacturer's admin utility for setup under
Windows. However I was motivated to try the RPM package because it
explicitly lists the DCP-7055W as one of the supported models.

poc
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Re: Configuring a printer with DNS-SD

[Patrick O'Callaghan]

On Wed, 2022-06-22 at 08:01 -0700, Doug Herr wrote:
> George might have the final answer, maybe your model will only work
> via a USP connection if using the brlaser option.
> 
> But, I checked my virtual machine to see how it is connecting to the
> printer...
> 
> Brother_DCP-L2550DW_series
> Brother_DCP-L2550DW_series (Idle, Accepting Jobs, Not Shared)
> Description:Brother DCP-L2550DW series
> Location:   
> Driver: Brother DCP-L2550DW series, using brlaser v6 (grayscale, 2-
> sided printing)
> Connection: dnssd://Brother%20DCP-L2550DW%20series._pdl-
> datastream._tcp.local/?uuid=e3248000-80ce-11db-8000-3c2af4d12445
> Defaults:   job-sheets=none, none media=na_letter_8.5x11in
> sides=two-sided-long-edge
> 
> So it does seem to be using dnssd. This is a pretty generic F36 XFCE
> install so I did not do much to get that working, mostly just needed
> to start cups.

That looks like a different model, and a later one than mine I think.

poc
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Re: Configuring a printer with DNS-SD

[George N. White III]

On Wed, Jun 22, 2022 at 12:43 PM Doug Herr 
wrote:

> On Wed, Jun 22, 2022, at 8:01 AM, Doug Herr wrote:
> > But, I checked my virtual machine to see how it is connecting to the
> printer...
> >
> > Brother_DCP-L2550DW_series
>

This seems to be a much newer printer and does have Apple AirPrint.
AirPrint was
introduced in 2011 to support iPads.
https://openprinting.github.io/driverless/01-standards-and-their-pdls/
summarizes the differences in the various Driverless Printing
implementations.  PDF is supported
across the board, but there are several raster formats and also PDFm which
is viewable with PDF viewers,
but tailored for the capabilities of specific printer models.  AirPrint and
IPP use different raster formats,
and Apple could change the details in the future, but currently it doesn't
appear to be a big deal as most
printers support both and conversion from IPP to Apple raster formats just
requires simplifying the header,
so probably easy to implement in the printer to gain IPP support.


> I just thought to check the web interface that the printer provides and I
> see that connection protocols can be turned off.
>
> This is at http://{printer IP}/net/net/protocol.html
>
>
> Protocol
> Web Based Management (Web Server)   HTTP Server Settings
> SNMPAdvanced Settings
> LPD Advanced Settings
> Raw Port
> IPP HTTP Server Settings   <<<<<<< CUPS driverless printing
> AirPrintAdvanced Settings   HTTP Server Settings
> Mopria   <<<<<< also a "driverless printing" protocol
> Web ServicesAdvanced Settings   HTTP Server Settings
> Mobile printing for Windows
> Proxy   Advanced Settings
> Network Scan
> SMTPAdvanced Settings
> FTP Server
> FTP Client
> TFTP
> mDNSAdvanced Settings
> LLMNR
>
> The only two that are unchecked for the above list are "FTP Server" and
> "Proxy".
>

-- 
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Re: Configuring a printer with DNS-SD

[Doug Herr]

On Wed, Jun 22, 2022, at 8:01 AM, Doug Herr wrote:
> But, I checked my virtual machine to see how it is connecting to the 
> printer...
>
> Brother_DCP-L2550DW_series

I just thought to check the web interface that the printer provides and I see 
that connection protocols can be turned off.

This is at http://{printer IP}/net/net/protocol.html


Protocol
Web Based Management (Web Server)   HTTP Server Settings
SNMPAdvanced Settings
LPD Advanced Settings
Raw Port
IPP HTTP Server Settings
AirPrintAdvanced Settings   HTTP Server Settings
Mopria   
Web ServicesAdvanced Settings   HTTP Server Settings
Mobile printing for Windows  
Proxy   Advanced Settings
Network Scan 
SMTPAdvanced Settings
FTP Server   
FTP Client   
TFTP 
mDNSAdvanced Settings
LLMNR

The only two that are unchecked for the above list are "FTP Server" and "Proxy".
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Re: Configuring a printer with DNS-SD

[Doug Herr]

On Wed, Jun 22, 2022, at 4:32 AM, Patrick O'Callaghan wrote:
> (See ... for context)
>
> I have a Brother All-in-one wireless laser printer/scanner which has
> worked for years using the manufacturer's driver blob. I now want to
> configure it using the printer-driver-brlaser package from the Fedora
> repo.
>
> I've uninstalled the original Brother driver and deleted the printer
> config using the CUPS interface.
>
> I then added a new printer using the KDE System Settings widget, and
> attempted to print a test page. This appears to go through, but then
> the queue status shows "Unable to locate printer".
>
> I deleted that configuration and tried again using the CUPS web
> interface. This shows up as:
>
> dnssd://Brother%20DCP-7055W._ipp._tcp.local/
>
> Printing a test page again shows "Unable to locate printer". This
> happens both using the generic IPP driver and the specific model driver
> from the RPM package.
>
> The CUPS systemd service and AVAHI daemon are both running, as is
> systemd-resolved, which handles DNS-SD (I reloaded the latter just in
> case.)
>
> I'm out of ideas. To repeat: both printing and scanning work correctly
> with the manufacturer's driver, so it's not a hardware or connection
> problem.
>
> Any thoughts before I give up and revert to the binary blob?

George might have the final answer, maybe your model will only work via a USP 
connection if using the brlaser option.

But, I checked my virtual machine to see how it is connecting to the printer...

Brother_DCP-L2550DW_series
Brother_DCP-L2550DW_series (Idle, Accepting Jobs, Not Shared)
Description:Brother DCP-L2550DW series
Location:   
Driver: Brother DCP-L2550DW series, using brlaser v6 (grayscale, 2-sided 
printing)
Connection: 
dnssd://Brother%20DCP-L2550DW%20series._pdl-datastream._tcp.local/?uuid=e3248000-80ce-11db-8000-3c2af4d12445
Defaults:   job-sheets=none, none media=na_letter_8.5x11in 
sides=two-sided-long-edge

So it does seem to be using dnssd. This is a pretty generic F36 XFCE install so 
I did not do much to get that working, mostly just needed to start cups.
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Re: Configuring a printer with DNS-SD

[George N. White III]

On Wed, Jun 22, 2022 at 8:32 AM Patrick O'Callaghan 
wrote:

> (See ... for context)
>
> I have a Brother All-in-one wireless laser printer/scanner which has
> worked for years using the manufacturer's driver blob. I now want to
> configure it using the printer-driver-brlaser package from the Fedora
> repo.
>
> I've uninstalled the original Brother driver and deleted the printer
> config using the CUPS interface.
>
> I then added a new printer using the KDE System Settings widget, and
> attempted to print a test page. This appears to go through, but then
> the queue status shows "Unable to locate printer".
>
> I deleted that configuration and tried again using the CUPS web
> interface. This shows up as:
>
> dnssd://Brother%20DCP-7055W._ipp._tcp.local/
>

I suspect this detection doesn't adequately check the details of the
IPP support.  Given the age of the printer, IPP may not be implemented
"properly" by current standards.


> Printing a test page again shows "Unable to locate printer". This
> happens both using the generic IPP driver and the specific model driver
> from the RPM package.
>

I looked at the Brother DCP-7055W Advanced User's Guide, which is dated
2012.   I can't see any mention of IPP or AirPrint.

https://discussions.apple.com/thread/7199902 says this model was not
on Apple's list of supported printers for AirPort in 2015.

 https://wiki.gentoo.org/wiki/Brother_networked_printer says the printer
works, but gives no configuration details

https://www.pwg.org/ipp/ippguide.html tells you to "Consult your Printer
documentation
or the Printer's Bonjour (DNS-SD) registration information to determine the
proper hostname,
port number, and path to use for your Printer."   It would be interesting
to know why
IPP is failing, but I suspect you are stuck with Brother's rpm.


> The CUPS systemd service and AVAHI daemon are both running, as is
> systemd-resolved, which handles DNS-SD (I reloaded the latter just in
> case.)
>
> I'm out of ideas. To repeat: both printing and scanning work correctly
> with the manufacturer's driver, so it's not a hardware or connection
> problem.
>
> Any thoughts before I give up and revert to the binary blob?
>
> poc
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-- 
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Configuring a printer with DNS-SD

[Patrick O'Callaghan]

(See ... for context)

I have a Brother All-in-one wireless laser printer/scanner which has
worked for years using the manufacturer's driver blob. I now want to
configure it using the printer-driver-brlaser package from the Fedora
repo.

I've uninstalled the original Brother driver and deleted the printer
config using the CUPS interface.

I then added a new printer using the KDE System Settings widget, and
attempted to print a test page. This appears to go through, but then
the queue status shows "Unable to locate printer".

I deleted that configuration and tried again using the CUPS web
interface. This shows up as:

dnssd://Brother%20DCP-7055W._ipp._tcp.local/

Printing a test page again shows "Unable to locate printer". This
happens both using the generic IPP driver and the specific model driver
from the RPM package.

The CUPS systemd service and AVAHI daemon are both running, as is
systemd-resolved, which handles DNS-SD (I reloaded the latter just in
case.)

I'm out of ideas. To repeat: both printing and scanning work correctly
with the manufacturer's driver, so it's not a hardware or connection
problem.

Any thoughts before I give up and revert to the binary blob?

poc
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Re: Getting a new printer/scanner

[Patrick O'Callaghan]

On Tue, 2022-06-21 at 17:30 +0100, Patrick O'Callaghan wrote:
> On Tue, 2022-06-21 at 06:54 -0700, Doug Herr wrote:
> > > I installed and configured the driver as a dnssd service (using
> > > the
> > > KDE
> > > system settings panel), but I'm getting an error: "Unable to
> > > locate
> > > printer".
> > > 
> > > The dnssd daemon is running, as is systemd-resolved and avahi-
> > > daemon.
> > > I've logged out and in again to no effect.
> > > 
> > > Journalctl shows nothing relevant (using "-g dnssd" or "-g dns-
> > > sd").
> > 
> > Is Cups running?
> > If so, does it see the printer?
> 
> Yes and yes. The CUPS admin page page shows the printer, but the test
> page in the queue has "Unable to locate printer".
> 
> To be clear, the printer does physically work with the Brother
> driver.
> On installing the brlaser driver I created a new printer and marked
> it
> as default, but didn't uninstall the Brother software. It's possible
> that this is causing some kind of interference, so I'll uninstall it
> and try again.

I removed the old driver and it made no difference.

Since this is getting off-topic wrt the original thread subject, I'm
going to re-post as a new topic.

poc
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Re: Getting a new printer/scanner

[Patrick O'Callaghan]

On Tue, 2022-06-21 at 06:54 -0700, Doug Herr wrote:
> > I installed and configured the driver as a dnssd service (using the
> > KDE
> > system settings panel), but I'm getting an error: "Unable to locate
> > printer".
> > 
> > The dnssd daemon is running, as is systemd-resolved and avahi-
> > daemon.
> > I've logged out and in again to no effect.
> > 
> > Journalctl shows nothing relevant (using "-g dnssd" or "-g dns-
> > sd").
> 
> Is Cups running?
> If so, does it see the printer?

Yes and yes. The CUPS admin page page shows the printer, but the test
page in the queue has "Unable to locate printer".

To be clear, the printer does physically work with the Brother driver.
On installing the brlaser driver I created a new printer and marked it
as default, but didn't uninstall the Brother software. It's possible
that this is causing some kind of interference, so I'll uninstall it
and try again.

poc
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Re: Getting a new printer/scanner

[Doug Herr]

On Tue, Jun 21, 2022, at 3:02 AM, Patrick O'Callaghan wrote:
> On Mon, 2022-06-20 at 22:32 +0100, Patrick O'Callaghan wrote:
>> On Mon, 2022-06-20 at 09:38 -0700, Doug Herr wrote:
>> > On Mon, Jun 20, 2022, at 3:08 AM, Patrick O'Callaghan wrote:
>> > > I'd just add that my Brother WiFi printer/scanner works just as
>> > > well
>> > > (using the manufacturer's driver blob which is essentially just a
>> > > CUPS
>> > > installation script), so no need to take up a USB port or add a
>> > > network
>> > > card. No doubt HP ones would also be fine.
>> > 
>> > More words of support for the Brother printers, I am using DCP-
>> > L2550DW.
>> > 
>> > I am still using the install tool from Brother but I did just
>> > confirm
>> > that "brlaser" has now been fully added to Fedora. 
>> > 
>> > You would do:
>> > sudo dnf install printer-driver-brlaser.x86_64
>> > 
>> > I then found it via the cups interface at:
>> > http://localhost:631
>> > 
>> > This worked well with the printer setup with wifi on the network
>> > and
>> > no USB hooked up. I was testing it on a vanilla XFCE F36 virtualbox
>> > host.
>> > 
>> > Note that scanning needed the extra steps of:
>> > sudo dnf install xsane sane-airscan
>> 
>> Excellent, thanks. I see that mine is one of the supported devices. I
>> look forward to trying it out.
>
> I installed and configured the driver as a dnssd service (using the KDE
> system settings panel), but I'm getting an error: "Unable to locate
> printer".
>
> The dnssd daemon is running, as is systemd-resolved and avahi-daemon.
> I've logged out and in again to no effect.
>
> Journalctl shows nothing relevant (using "-g dnssd" or "-g dns-sd").

Is Cups running?
If so, does it see the printer?
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