[sane-devel] Issues with backend for Pixma TR4520

[Jack Sanders]

Hi Thierry,

Thank you for pulling out these packages! I'm trying to install them and
running into some errors. Maybe I need an auxiliary package of some sort
that I don't have installed? Here's the error message:

Reading package lists... Error!
E: Sub-process Popen returned an error code (2)
E: Encountered a section with no Package: header
E: Problem with MergeList /home/pi/libsane-common_1.0.32+20210417-0_all.deb
E: The package lists or status file could not be parsed or opened.

-Jack

On Tue, Jul 20, 2021 at 2:42 PM Thierry Huchard <thierry at ordissimo.com>
wrote:

> Le 2021-07-20 21:21, Jack Sanders a écrit :
> > Update: thanks for your help, I got it working by installing the most
> > recent backends
>
> Hi Jack,
> Here you will find the packages for your distribution :
>
> https://build.opensuse.org/package/binaries/home:thierry1970/sane-backends/Raspbian_10
> They are not the latest versions but they support your hardware.
> you need to get :
> #$ wget
>
> https://build.opensuse.org/package/binary/download/home:thierry1970/sane-backends/Raspbian_10/armv7l/libsane-common_1.0.32+20210417-0_all.deb
> #$ wget
>
> https://build.opensuse.org/package/binary/download/home:thierry1970/sane-backends/Raspbian_10/armv7l/libsane1_1.0.32+20210417-0_armhf.deb
> #$ wget
>
> https://build.opensuse.org/package/binary/download/home:thierry1970/sane-backends/Raspbian_10/armv7l/libsane_1.0.32+20210417-0_armhf.deb
> #$ wget
>
> https://build.opensuse.org/package/binary/download/home:thierry1970/sane-backends/Raspbian_10/armv7l/sane-utils_1.0.32+20210417-0_armhf.deb
> #$ sudo apt update
> #$ sudo apt install ./libsane-common_1.0.32+20210417-0_all.deb
> ./libsane1_1.0.32+20210417-0_armhf.deb
> ./libsane_1.0.32+20210417-0_armhf.deb
> ./sane-utils_1.0.32+20210417-0_armhf.deb
> #$ scanimage -L
>
> Thierry
>
> >
> > On Tue, Jul 20, 2021 at 10:30 AM Jack Sanders <jjacksanders at gmail.com>
> > wrote:
> >
> >> Thanks for the reply, Thierry.
> >>
> >> 1 - Distribution is Raspbian 10 (Debian-based, run on Raspberry Pi,
> >> ARM architecture)
> >> 2 - My sane backend is version 1.0.27
> >>
> >> On Mon, Jul 19, 2021 at 11:27 PM Thierry Huchard
> >> <thierry at ordissimo.com> wrote:
> >>
> >> In order to help you more, we need to provide more information:
> >> 1 - Your distribution and its version?
> >> 2 - the version of sane installed
> >> # scanimage --version
> >>
> >> Le 20 juillet 2021 07:40:16 GMT+02:00, Thierry Huchard
> >> <thierry at ordissimo.com> a écrit : Hi,
> >> The pixma backend only supports usb.
> >> Your device is supported by the escl and airscan backend.
> >> You need to update your sane version or install airscan.
> >>
> >> Thierry
> >>
> >> Le 20 juillet 2021 05:18:55 GMT+02:00, Jack Sanders
> >> <jjacksanders at gmail.com> a écrit :
> >> I'm a major beginner with networks and all of this, and the way to
> >> get this scanner to function is beyond me.
> >>
> >> This is the error readout after attempting to add the device
> >> directly to the pixma backend config file. It's the only reaction
> >> I've gotten trying to connect over wifi. Without listing the device
> >> in the config file, both sane-find-scanner and scanimage -L run
> >> (both run as root) show nothing. Error message below:
> >>
> >> [bjnp] udp_command: ERROR - no data received (timeout = 5000)
> >> [bjnp] bjnp_init_device_structure: Cannot read mac address, skipping
> >> this scanner
> >> [bjnp] udp_command: ERROR - no data received (timeout = 5000)
> >> [bjnp] add_scanner: ERROR - Cannot read scanner make & model:
> >> bjnp://192.168.68.110:8612/timeout=5000 [1]
> >>
> >> Meanwhile, when connected by usb I get this readout in response to
> >> running sane-find-scanner, which lists codes that correspond to
> >> what's listed on the backend supported device charts for this
> >> printer/scanner model. Can't parse what the "Pipe error" bit means.
> >> Feedback message below:
> >>
> >> found USB scanner (vendor=0x04a9 [Canon], product=0x1854 [TR4500
> >> series]) at libusb:001:005
> >> could not fetch string descriptor: Pipe error
> >> # Your USB scanner was (probably) detected. It may or may not be
> >> supported by
> >> # SANE. Try scanimage -L and read the backend's manpage.
> >>
> >> Any guidance on how to get it working would be greatly appreciated.
> >>
> >> Thank you!
> >
> > --
> > Envoyé de mon appareil Android avec Courriel K-9 Mail. Veuillez
> > excuser ma brièveté.
> >
> > Links:
> > ------
> > [1] http://192.168.68.110:8612/timeout=5000
>
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