Charles,

We are still investigating, however a work around is this:

su
cd /usr/share/hplip/data/xml
gedit models.xml

Locate this section:

<model name="DESKJET_815C">
    <id></id>
    <icon>DESKJET_840C.png</icon>
    <support type="2"/>
    <case-model>
        <model1>Deskjet 815c</model1>
    </case-model>
    <io support="1" mode="0" control="0" mfp-mode="2" scan-port="0"/>
    <align type="2"/>
    <clean type="1"/>
    <color-cal type="0"/>
    <status type="1" battery-check="0" dynamic-counters="0"/>
    <scan type="0"/>
    <fax type="0"/>
    <pcard type="0"/>
    <copy type="0"/>
    <tech class="DJ8xx" type="2"/>
    <embedded-server type="0"/>
    <panel-check type="0"/>
    <linefeed-cal type="0"/>
    <pq-diag type="0"/>
    <r0>
        <agent1 kind="3" type="1" sku="15 (C6615DN)"/>
        <agent2 kind="3" type="2" sku="23 (C1823D)"/>
    </r0>
</model>

Change line:

    <io support="1" mode="0" control="0" mfp-mode="2" scan-port="0"/>

TO:

    <io support="1" mode="1" control="0" mfp-mode="2" scan-port="0"/>

Save, Exit, restart HPLIP (/etc/init.d/hplip restart)

hp-align should work.

We are looking into a long term solution as well.

Let me know if you have any problems.

Aaron

Charles Stroom wrote:
Hi Aaron,

nice and thanks a lot.
Charles Stroom

email: charles at stremen dot xs4all dot nl


------- Original Message

on  Tue, 18 Jul 2006 14:19:05 PDT
Aaron J Albright <[EMAIL PROTECTED]> wrote:
This is a cryptographically signed message in MIME format.

--------------ms070002080103060703070806
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Charles,

I can reproduce this. I'll continue to research this and see if there is a resolution. Sorry for the delay.

Aaron

Charles Stroom wrote:
since my problem hasn't been solved yet, I thought to repeat
my request for help.  My latest email to the list is below.

If anyone has further suggestions, I would like to hear them.

Cheers

Charles

------- Forwarded Message

Subject: Re: [Hplip-help] raise Error(ERROR_DEVICE_IO_ERROR) From: Charles Stroom <[EMAIL PROTECTED]>
Date:    Tue, 11 Jul 2006 00:24:23 +0200
To:      hplip-help@lists.sourceforge.net

Hi Aaron,

I did do this (tail -f /var/log/messages) and got with hp-clean:

- ----------------------------
Jul 11 00:06:50 corrente kernel: ppdev0: registered pardevice
Jul 11 00:06:50 corrente kernel: ppdev0: negotiated back to compatibility m
ode because use
r-space forgot
Jul 11 00:06:50 corrente kernel: ppdev0: unregistered pardevice
Jul 11 00:06:50 corrente kernel: ppdev1: claim the port first
Jul 11 00:06:50 corrente kernel: ppdev2: claim the port first
Jul 11 00:06:50 corrente kernel: ppdev3: claim the port first
Jul 11 00:06:50 corrente python: hpssd[5285]: warning: Inrecognized URI: pa
rallel:/dev/lp0
Jul 11 00:06:50 corrente python: hpssd[5285]: warning: Inrecognized URI: us
b://Lexmark/E23
2
Jul 11 00:06:50 corrente python: hpssd[5285]: warning: Inrecognized URI: fi
le:/tmp/printfi
le.ps
Jul 11 00:06:50 corrente kernel: ppdev0: registered pardevice
Jul 11 00:06:50 corrente python: hp-clean[14262]: warning: No status availa
ble for device.
Jul 11 00:06:50 corrente python: hpssd[5285] error: String query failed for
 id 0
Jul 11 00:06:50 corrente hpiod: invalid channel descriptor:-1 io/hpiod/syst
em.cpp 1351
Jul 11 00:06:50 corrente python: hp-clean[14262] error: Channel write error
Jul 11 00:06:50 corrente kernel: ppdev0: negotiated back to compatibility m
ode because use
r-space forgot
Jul 11 00:06:50 corrente kernel: ppdev0: unregistered pardevice
- ---------------------------

with hp-align, it's slightly different:
- ------------------------------
Jul 11 00:16:26 corrente kernel: ppdev0: registered pardevice
Jul 11 00:16:26 corrente kernel: ppdev0: negotiated back to compatibility m
ode because use
r-space forgot
Jul 11 00:16:26 corrente kernel: ppdev0: unregistered pardevice
Jul 11 00:16:26 corrente kernel: ppdev1: claim the port first
Jul 11 00:16:26 corrente kernel: ppdev2: claim the port first
Jul 11 00:16:26 corrente kernel: ppdev3: claim the port first
Jul 11 00:16:26 corrente python: hpssd[5285]: warning: Inrecognized URI: pa
rallel:/dev/lp0
Jul 11 00:16:26 corrente python: hpssd[5285]: warning: Inrecognized URI: us
b://Lexmark/E23
2
Jul 11 00:16:26 corrente python: hpssd[5285]: warning: Inrecognized URI: fi
le:/tmp/printfi
le.ps
Jul 11 00:16:26 corrente kernel: ppdev0: registered pardevice
Jul 11 00:16:26 corrente python: hp-align[16066]: warning: No status availa
ble for device.
- ------------------------------

And yes, print and also using the cups interface works fine.

The printer I am trying to access is a deskjet 815C on the parallel
parport0 (the Lexmark is on usb).
hp-info says:
device-uri hp:/par/DESKJET_815C?device=/dev/parport0
And btw, my statement below (on the packages) is not correct:  some
packages are installed (libjpeg-devel-6.2.0-5, libjpeg-6.2.0-739,
libusb-0.1.10a-4), but the others are not.  Would that be the
reason for the problems?

Is it a problem that the same printer is still available under a different
print queue with Device URI: parallel:/dev/lp0 ?  Stopping that print
queue has no effect anyhow.

Regards,

Charles Stroom

email: charles at stremen dot xs4all dot nl


- ------- Original Message

on  Mon, 10 Jul 2006 13:57:11 PDT
Aaron Albright <[EMAIL PROTECTED]> wrote:
Charles,

Can you run tail -f /var/log/messages

and then try using one of the hp commands? (hp-align, etc)

There seems to be some sort of communication problem. But you can print okay?

Aaron

Charles Stroom wrote:
on  Mon, 10 Jul 2006 09:06:42 PDT
dwelch91 <[EMAIL PROTECTED]> wrote:
Charles Stroom wrote:

Checking for library dependencies...
Checking for libnetsnmp...
error: Not found.
Checking for libjpeg...
error: Not found.
Checking for libusb...
error: Not found.
Checking for libcrypto...
error: Not found.
Checking for libpthread...
error: Not found.
.
.
.
---------------------------------
however, the packages missing above are installed.  For example

rpm -qa | grep -i snmp
net-snmp-devel-5.2.1-10
net-snmp-5.2.1-10.2
rpm -qa | grep -i libjpeg
libjpeg-devel-6.2.0-5
libjpeg-6.2.0-739

Any hints from the community?

Many thanks

Charles

email: charles at stremen dot xs4all dot nl


Is this Fedora? If so, the errors you got in hp-check are a known problem. It will be fixed in the next release.

-Don


No, this is SuSE 10.0, with hplip 1.6.6a installed from tarfile.

As I said in my original message, hp-clean or similar programs fail when
writing to the device (I believe), with messages:
.
.
.  File "/usr/share/hplip/base/device.py", line 1531, in writePrint
    return self.__writeChannel(self.openPrint, data)
  File "/usr/share/hplip/base/device.py", line 1563, in __writeChannel
    raise Error(ERROR_DEVICE_IO_ERROR)
base.g.Error: ('Device I/O error', 12)

Still not working.

Regards,

Charles

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