[sane-devel] Canon MF4660 test/debug

[Nicolas Martin]

Thanks for the log, this will be very helpful, as I'm just figuring out
there's something weird with the dd20 (select_source) message, the
length is one byte too long (but it apparently used to work with the
MF4270, MF4140 and MF4150), so I really need to review that with Dennis
(did not discuss with him yet) before proposing a change. 

Will keep you posted anyway.

Nicolas

Le dimanche 18 janvier 2009 à 12:24 +0000, Steve Hardy a écrit :
> Great, thanks.
> 
> I have not had time to do any analysis yet, but I have taken a snoop
> trace under windows as you suggested (zipped trace attached).
> 
> One additional bit of info is that the scanner would not work under
> windows until I power-cycled it, similar to Linux, printer said
> "scanning mode" but the applications found it unresponsive.  
> 
> I guess this means the sane initialisation messages must be wrong, as
> it appears the scanner ends up in a funny state after attempting to
> use it on Linux?
> 
> The trace attached captures the following actions 
> - Plug in the USB to the printer
> - Press the "Scan" button on the device
> - Open the Canon MF toolbox application to perform a scan
> - Initiate a scan from software (not via the printer button)
> - Scan one blank page
> - Stop and save snoop trace
> 
> Thanks, 
> 
> Steve
> 
> 
> 
> 2009/1/18 Nicolas Martin <nicolas.martin at freesurf.fr>
>         Thanks for this log, will review it with Dennis Lou, who wrote
>         the
>         ImageClass part of the pixma backend, and will keep you
>         posted.
>         
>         Seems like it is always failing on the select_source message,
>         maybe the
>         scanner does not expect it as is, and this may require to get
>         a Windows
>         snoop trace (using SnoopyPro, this is very easy to do), to
>         check if some
>         protocol messages are different for this MFP.
>         
>         Nicolas
>         
>         
>         Le dimanche 18 janvier 2009 à 09:39 +0000, Steve Hardy a
>         écrit :
>         
>         > Ok, so I've taken the more detailed logs :
>         >
>         > $ scanimage -L
>         > device `pixma:04A926B0_4175H0007854' is a CANON Canon
>         imageCLASS
>         > MF4690 multi-function peripheral
>         > $ export SANE_DEBUG_PIXMA=10
>         > $ export SANE_DEBUG_SANEI_USB=255
>         > $ export SANE_DEBUG=255
>         > $ export SANE_DEBUG_PIXMA=21
>         > $ scanimage -T  2> /tmp/sane_dbg_log_mf4660_01.txt
>         >
>         > As observed before, it appears that the initial writes are
>         working
>         > (since the scanner is getting set to "Scanning Mode"
>         according to the
>         > front panel display), but the reads are all timing out :
>         >
>         > [sanei_usb] sanei_usb_write_bulk: trying to write 10 bytes
>         > [sanei_usb] 000 DB 20 00 00 00 00 00 00 00
>         > 00                   . ........
>         > [sanei_usb] sanei_usb_write_bulk: wanted 10 bytes, wrote 10
>         bytes
>         > [pixma] OUT  T=3.474 len=10
>         > [pixma]  00000000:db 20 00 00 00 00 00 00  00 00
>         > [pixma]
>         > [sanei_usb] sanei_usb_read_bulk: trying to read 2 bytes
>         > [sanei_usb] 000 06 06
>             ..
>         > [sanei_usb] sanei_usb_read_bulk: wanted 2 bytes, got 2 bytes
>         > [pixma] IN   T=3.510 len=2
>         > [pixma]  00000000:06 06
>         > [pixma]
>         > [sanei_usb] sanei_usb_write_bulk: trying to write 21 bytes
>         > [sanei_usb] 000 DD 20 00 00 00 00 00 00 0B 00 01 00 00 00 00
>         > 00 . ..............
>         > [sanei_usb] 010 00 00 00 00 FF
>              .....
>         > [sanei_usb] sanei_usb_write_bulk: wanted 21 bytes, wrote 21
>         bytes
>         > [pixma] OUT  T=3.510 len=21
>         > [pixma]  00000000:dd 20 00 00 00 00 00 00  0b 00 01 00 00 00
>         00 00
>         > [pixma]  00000010:00 00 00 00 ff
>         > [pixma]
>         > [sanei_usb] sanei_usb_read_bulk: trying to read 2 bytes
>         > [sanei_usb] sanei_usb_read_bulk: read returned EOF
>         > [pixma] BUG:Unmapped SANE Status code 5
>         > [pixma] IN   T=3.513 len=-9
>         > [pixma]   ERROR: ETIMEDOUT
>         > [pixma]
>