Ok, Allan, thanks for your kind present ;-) AFAIK, (for MP610 at least), different resolution on x and y axis are always rejected by the scanner (tested it already). The Windows driver (MP610's) always use same x & y, and you cannot specify different x/y values, only _one_ value can be entered as dpi parameter in Canon's driver form.
So the good question now: why does Canon specify resolutions of a x 2a, if you can only use a x a ? If someone's got a clue ... Le lundi 11 f?vrier 2008 ? 16:14 -0500, m. allan noah a ?crit : > Gernot- does the windows driver allow independent resolution controls? > what are you going to do with the stretched image that will result? > > Nicolas- cvs is open for business again, so we can accept your patch > at any time. keep up this level of interaction and you'll get > maintainership too :) > > allan > > 2008/2/11 Nicolas <nicolas.martin at freesurf.fr>: > > > > Hi Gernot, > > > > That sounds great news, and we can inform the Sane list then! > > > > I had a look at the debug trace you sent me, and everything looks right, > > working as expected. > > I'll keep it anyway as a reference, if needed. > > Let us know if you are able to reproduce the problem you had before, and if > > you can get such > > a trace with the error, please send it, as to investigate more. > > One point that could be done to improve the driver is to implement the > > send_time function, as the > > scanner asks for it. Would be needed for that, a Snoop of the usb port with > > the Windows driver. > > But why a scanner would need time? It seems to work fine without it anyway. > > > > For now, I'll update the current stand-alone Pixma driver with Pixma MP710 > > and MP740, as well as > > the patch to Sane files, so as to have it included in future Sane releases > > too. > > > > Thanks again for your participation and help for enhancing the Pixma Sane > > driver > > > > Regards > > Nicolas > > > > Le lundi 11 f?vrier 2008 ? 09:33 +0900, Gernot Hassenpflug a ?crit : > > On Feb 11, 2008 3:30 AM, Nicolas <nicolas.martin at freesurf.fr> wrote: > > > > > > Ok, great! > > > > > > In order to debug the 600 and 1200 dpi, I will need the traces produces by > > > the driver in debug mode. > > > > Dear Nicholas, > > > > Your driver is apparently working perfectly for me now, no idea why I > > got a hardware error last night with all resolutions above 300. I even > > tried again to use the scan program sending output to the console, and > > although for 1200dpi it took a *long* time(!), there was no error and > > the program scanned to completion eventually. > > > > I am nevertheless attaching for you the debug output of a successful > > 1200dpi scan in case there is any content that appears suspicious or > > dubious. > > > > I would also like to ask at this point: is it possible with not too > > much effort to add independent x and y resolutions, so that 1200x2400, > > or 2400x4800 etc will be available in the pixma series? > > > > Many thanks, Gernot Hassenpflug > > > > > > -- > > sane-devel mailing list: sane-devel at lists.alioth.debian.org > > http://lists.alioth.debian.org/mailman/listinfo/sane-devel > > Unsubscribe: Send mail with subject "unsubscribe your_password" > > to sane-devel-request at lists.alioth.debian.org > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20080211/bff08f38/attachment.htm
