MF8230 Scanner-driver is really good now through USB. (I'll test with ethernet another day.) I've found two corner-cases. 1) When choosing 3 copies from ADF in XSane, but putting 4 copies in the scanner (!) : - 3 pages are scanned correctly - All 4 pages goes through the ADF, ...
[pixma] OUT T=6.198 len=11 [pixma] 00000000:d4 20 00 00 00 00 00 00 04 00 06 [pixma] [pixma] IN T=6.198 len=-14 [pixma] ERROR: EEOF [pixma] [pixma] WARNING: Error in response phase. cmd:d420 [pixma] If the scanner hangs, reset it and/or unplug the USB cable. [pixma] ...