Karl Heinz,
I upgraded gimp, glib, and gtk so that I could
build gimp-print. All are now built.
I also downloaded the 112 MB printer-ready file
that you made for me.
Bad News (?): I can "cp HUGE_FILE /dev/usb/lp0"
correctly and I get NO errors (nothing unexpected
in my log file; just an info message from the
USB printer driver).
I also tried this:
In gimp, file/print to File.
Changed Setup/Driver to Epson Stylus Color 740.
Changed Media Size to Letter.
Changed Resolution to 720 DPI Highest Quality
(and second time to 1440x720 DPI Highest Quality).
Clicked Print to generate the file.
When I copy (cp) the 720 DPI HighestQ file to /dev/usb/lp0,
I do get I/O error (timeout, -2 = -ENOENT = URB canceled).
Would this be close to what you are seeing?
I'm now trying it by having gimp & gimp-print print
directly to lpraw (my logical name for /dev/usb/lp0
with no printer filters)...
This worked at 360 DPI (3.5 MB, relatively small file).
At 720 DPI High Quality (51 MB data): works, and since
"cp printed_to_a_file /dev/usb/lp0" fails (2 times) with
the same graphics file, it a must be a driver issue
(but printer driver or HCD?).
I'll keep looking at it now that I have a reproducible
setup.
~Randy
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Monday, June 12, 2000 7:51 AM
> To: Dunlap, Randy
> Cc: [EMAIL PROTECTED]
> Subject: RE: [linux-usb] Problems with USB printer
>
>
> Randy,
>
> you want 3.1.5. This will give you the best output
> on your stc740. And no, I have not tried the uniprint
> driver. I did however try to print a file that was
> spooled from a Windows 98 machine across the network
> and it showed the same problem. So I'm pretty sure
> that its not the driver. If you really want to duplicate
> what I'm doing here I can make a file available to you
> that will show this problem (just let me know if
> I should put one of the files up on the server).
>
> Karl Heinz
>
> "Dunlap, Randy" <[EMAIL PROTECTED]> said:
>
> > Karl Heinz,
> >
> > Do I want gimp-print 3.1.5 or print 3.0.9?
> >
> > I began with the jpg file as you suggested.
> > Didn't blow it up any, just let gimp scale it
> > to the page size. Printed using usb-uhci and
> > stc740 (in its highest resolution) that you pointed
> > me to. No problems or errors.
> >
> > I'll try the larger file next.
> >
> > Have you tested printing these files with stc740 instead
> > of with gimp-print? Results?
> >
> > ~Randy
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