Hello Kurt, I am concerned about this part of the log file:
[pixma] pixma_open(): Canoscan 8800F [pixma] WARNING:pixma_write(): count(0) != len(16) [pixma] OUT T=3.054 len=-1 [pixma] 00000000:ef 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [pixma] ERROR: EIO It looks as though the scanner is not responding even at the start of the operation. Maybe you can try setting more debug options to 255: DEBUG_SANE DEBUG_SANE_SANEI_USB SANE_DEBUG_DLL And then send me the log file (or a link to it). I don't know what changes there might be that Canon has made in firmware perhaps, but maybe there is some other problem unrelated to the scanner itself that can be determined from the raw USB communications. You might also try sane-test (see man page) to test your sane installation, and set SANE_DEBUG_TEST to 255 for that. Best regards, Gernot Hassenpflug