Hi Henry, The backend has an ADF paper empty bug. You can try to debug this issue, if you like.
The first step could be to sniff the complete usb protocol from a 5mm x 5mm ADF scan on a windows machine with usbsnoop (http://benoit.papillault.free.fr/usbsnoop/). This program is old and runs with xp only, but we have a parser for the log files (spike4.pl). Cheers, Rolf Am 05.12.2012 00:57, schrieb Henry Ptasinski: > Rolf, > > The ADF partially works. I've been able to get simplex scans > occasionally. Duplex scans so far have only yielded the front page, and > some errors such as: > > ... > [pixma] bjnp_write_bulk(0, bufferptr, 0x10 = 16) > [pixma] bjnp_set_timeout to 20000 > [pixma] bjnp_read_bulk(0, bufferptr, 0x200 = 512) > [pixma] bjnp_set_timeout to 20000 > [pixma] bjnp_write_bulk(0, bufferptr, 0x10 = 16) > [pixma] bjnp_set_timeout to 20000 > [pixma] bjnp_read_bulk(0, bufferptr, 0x200 = 512) > [pixma] bjnp_set_timeout to 20000 > [pixma] bjnp_write_bulk(0, bufferptr, 0x10 = 16) > [pixma] bjnp_set_timeout to 20000 > [pixma] bjnp_read_bulk(0, bufferptr, 0x200 = 512) > [pixma] bjnp_set_timeout to 20000 > [pixma] bjnp_write_bulk(0, bufferptr, 0x10 = 16) > [pixma] bjnp_set_timeout to 20000 > [pixma] bjnp_read_bulk(0, bufferptr, 0x200 = 512) > [pixma] WARNING:image size mismatches > [pixma] 1678578 expected (877 lines) but 1556082 received (813 lines) > [pixma] pixma_read_image(): completed (underrun detected) > [pixma] sanei_bjnp_deactivate (0) > [pixma] Reader task terminated > [pixma] pixma_close(): Canon PIXMA MX890 Series > [pixma] sanei_bjnp_close(0): > [pixma] sanei_bjnp_deactivate (0) > > > When this happens, the display on the printer continues to say "Scanning > document", and I'm not able to cancel out of the scan. > > My recent tests were via network. I'll attach the scanner via USB and > try to collect some debug info. > > --- > Henry Ptasinski > henry at logout.com > >
