Hi Rogério, I can see an error response in your log file.
To fix this I need an USB snoop file from Canon's ScanGear Software. You can use wireshark for snooping (to enable USB support read this: https://wiki.wireshark.org/CaptureSetup/USB). Many thanks for your help. Cheers, Rolf Am 06.10.19 um 15:14 schrieb Rogério Brito: > Dear Rolf and others, > > On Oct 05 2019, Rolf Bensch wrote: >> Am 05.10.19 um 00:00 schrieb Rogério Brito: >>> Since I read the code and it mentioned that it needed testers, here is a >>> report. With the newer version of sane-backends, I can scan from the >>> flatbed, as expected, and it works as well as I could expect (minus the >>> fragility of this piece of hardware---disappointed with that, but that's not >>> software-related, of course). >> >> Many thanks for your report. > > You're welcome. > >> $ scanadf -d pixma:04A91855_103CD1 --source "Automatic Document Feeder" >> --mode Lineart --output-file foo%02d.pbm >> >> For testing ADF I prefer to use gscan2pdf and for "normal" scans xsane. >> You can see some logs with: >> >> $ SANE_DEBUG_PIXMA=11 gscan2pdf > > I tried: > > $ SANE_DEBUG_PIXMA=11 scanadf -d pixma:04A91855_103CD1 --source "Automatic > Document Feeder" --mode Lineart --output-file foo%02d.pbm 2> scanadf.log > > I still couldn't get anything scanned from the ADF (even though I put there > 3 sheets of paper). I'm attaching the log to this message. Any help would > be highly appreciated. > > If further information (or more detailed logs) are desired, please let me > know. > >> You can decrease the log level to reduce log depth (see 'man sane-pixma' >> for details). > > Thanks for the hint of that manpage. > >>> In the case of it being possible to return this device and get something >>> else in its place, which manufacturer/model would be preferred to have >>> *full* functionality with Free Software only? Any recommendations? >> >> Please have a look at this table: >> http://www.sane-project.org/sane-backends.html > > Regarding this device, unfortunately, it seems that I can't return it. :-( > So, I will have to live with it for the moment. > > If/when possible, I may be getting another one more compatible and robust > with Free Software support in the future. :-( OTOH, that table is huge. > Which manufacturers are generally good bets/collaborative with Free Software > developers in general? HP? > >> Hope this helps. > > It sure did. > > > Thanks, > > Rogério >