On Sat, 17 Jul 2010 21:17:44 +0200 Nicolas Martin <nicolas0martin at gmail.com> wrote:
> Problem is, I don't see yet a solution to exit from this pitfall, need > to think it over. Ok. > > > ADF: Working until 600 DPI, i tried it with 1200 DPI and i just got > > a "Error during read: Error during device I/O". Error and the > > scanner stuck with a "Processing..." message until Power off/on. > > (I know, max ADF resolution is 600 DPI) > > Could you take a log of this 1200 dpi sequence, normally, even if an > error arises, the scan sequence should be fulfilled until the end, so > maybe there's something else wrong here. > > In the meantime, I can add a simple a test for this model, to limit > ADF scan to 600 dpi. Good idea. Here the log: http://files.pannek.de/sane/1200dpi.zip If you need a (big) log from an successful 600 dpi scan: http://files.pannek.de/sane/600dpi.zip > is not executed. I will propose a fix for that to be tested. Thanks. > Point is, I did not have yet any windows usb snoops for those > particular cases, to confirm how the Canon driver behaves in those > error situations. Can i help somehow? I have a Wireshark-log while running Windows in a VM using Canon Scangear. There is a info box while scanning without a document in the feeder and i clicked two times "OK" (without a document in it): http://files.pannek.de/sane/traffic.zip > Ok, nominal cases work, but some tweaks are apparently needed when > error conditions are met. So let's see how we can improve that. Thanks, Matthias