[sane-devel] Using "scanimage" under Gentoo

[Ralph Little]

Hi
You don't say if you did adf scanning successfully on Ubuntu although I
assume that is the case.
Could you confirm that?

Cheers
Ralph

On Tue, Dec 3, 2019, 06:58 Dr Rainer Woitok, <rainer.woitok at gmail.com>
wrote:

> Greetings,
>
> since quite some time  I have been successfully using  "scanimage" on my
> laptop running Ubuntu 16.04  to scan from  a Canon Pixma  MX 885 scanner
> connected via WiFi.
>
> Under Ubuntu 16.04 the "sane" package itself  was version 1.0.14-11, but
> packages "libsane",  "libsane-common",  and "sane-utils"  were regularly
> updated up to version 1.0.28+git20190831-xenial0 from Rolf Bensch's PPA.
>
> I then installed Gentoo on the same laptop.  Neither the scanner nor the
> WiFi changed in any way.   For the Pixma I installed the Gentoo packages
> "media-gfx/sane-backends" version 1.0.27-r3, as well as "net-print/cups-
> bjnp" version 2.0 and "net-print/gutenprint" version 5.3.1, which are at
> least required for printing (printing a test page via "cups" works).
>
> The scanner configuration in "~/.config/sane/" is still what I also used
> under Ubuntu  (the name "new-host"  was coined by my router and does not
> seem to be changable in the router's configuration):
>
>    $ echo $SANE_CONFIG_DIR
>    /home/rainer/.config/sane
>    $ cd $SANE_CONFIG_DIR
>    $ grep '^[^#]+$' *.conf
>    dll.conf:pixma
>    pixma.conf:bjnp-timeout=100
>    pixma.conf:bjnp://new-host/timeout=5000
>    pixma.conf:bjnp-timeout=100
>    $
>
> Package "media-gfx/sane-backends" has been built  with the following USE
> flags:
>
>    $ equery --no-color --no-pipe uses media-gfx/sane-backends | grep -ve
> '- - sane_backends_'
>    [ Legend : U - final flag setting for installation]
>    [        : I - package is installed with flag     ]
>    [ Colors : set, unset                             ]
>     * Found these USE flags for media-gfx/sane-backends-1.0.27-r3:
>     U I
>     - - abi_x86_32          : 32-bit (x86) libraries
>     - - gphoto2             : Add digital camera support
>     + + ipv6                : Add support for IP version 6
>     + + sane_backends_pixma : SANE_BACKENDS setting for building the pixma
> backend
>     - - snmp                : Add support for the Simple Network
> Management Protocol if available
>     - - systemd             : Enable use of systemd-specific libraries and
> features like socket activation or session tracking
>     - - threads             : Add threads support for various packages.
> Usually pthreads
>     + + usb                 : Add USB support to applications that have
> optional USB support (e.g. cups)
>     - - v4l                 : Enable support for video4linux (using
> linux-headers or userspace libv4l libraries)
>     - - xinetd              : Add support for the xinetd super-server
>     - - zeroconf            : Support for DNS Service Discovery (DNS-SD)
>    $
>
> Scanning two pages from the scanner's platen glass works (execpt perhaps
> for the reported scanner status of 5, but this may have also occured un-
> der Ubuntu because my scanner script  originally weeded out any messages
> matching "\(scanner status = [57]\)"):
>
>    $ scanimage '--batch=.%03d0.png' --batch-increment 1 --batch-print
> --batch-prompt --batch-start 1 --device pixma:MX880_new-host --source
> Flatbed --format png --mode Gray --resolution 300 -l 0 -t 0 -x 210 -y 297
>    Scanning infinity pages, incrementing by 1, numbering from 1
>    Place document no. 1 on the scanner.
>    Press <RETURN> to continue.
>    Press Ctrl + D to terminate.
>
>    Scanning page 1
>    Scanned page 1. (scanner status = 5)
>    Place document no. 2 on the scanner.
>    Press <RETURN> to continue.
>    Press Ctrl + D to terminate.
>
>    Scanning page 2
>    Scanned page 2. (scanner status = 5)
>    Place document no. 3 on the scanner.
>    Press <RETURN> to continue.
>    Press Ctrl + D to terminate.
>    Batch terminated, 2 pages scanned
>    $
>
> However,  trying to scan  a single  double sided original  or two single
> sided originals via the scanner's Automatic Document Feeder  fails after
> returning the image for the first page:
>
>    $ scanimage '--batch=.%03d0.png' --batch-increment 1 --batch-print
> --batch-start 1 --device pixma:MX880_new-host --source 'ADF Duplex'
> --format png --mode Gray --resolution 300 -l 3 -t 0 -x 210 -y 297
>    Scanning infinity pages, incrementing by 1, numbering from 1
>    Scanning page 1
>    Scanned page 1. (scanner status = 5)
>    Scanning page 2
>    scanimage: sane_read: Error during device I/O
>    Scanned page 2. (scanner status = 9)
>    Batch terminated, 2 pages scanned
>    $
>
> And after that the scanner will no longer respond  to any requests until
> it is switched off and on again:
>
>    $ scanimage '--batch=.%03d0.png' --batch-increment 1 --batch-print
> --batch-start 2 --device pixma:MX880_new-host --source 'ADF Duplex'
> --format png --mode Gray --resolution 300 -l 3 -t 0 -x 210 -y 297
>    Scanning infinity pages, incrementing by 1, numbering from 1
>    Scanning page 1
>    [bjnp] bjnp_recv_header: ERROR - could not read response header (select
> timed out after 5000 ms)!
>    [bjnp] sanei_bjnp_write_bulk: ERROR - Could not read response to
> command!
>    [bjnp] bjnp_recv_header: ERROR - could not read response header (select
> timed out after 5000 ms)!
>    [bjnp] sanei_bjnp_write_bulk: ERROR - Could not read response to
> command!
>    [bjnp] bjnp_recv_header: ERROR - could not read response header (select
> timed out after 5000 ms)!
>    [bjnp] sanei_bjnp_write_bulk: ERROR - Could not read response to
> command!
>    scanimage: sane_read: Error during device I/O
>    Scanned page 1. (scanner status = 9)
>    Batch terminated, 1 page scanned
>    $
>
> Any ideas what's going wrong here?
>
> Sincerely,
>   Rainer
>
>
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