Le mardi 05 septembre 2006 ? 20:29 +0200, Oliver Schwartz a ?crit : > Hi, > > > > When I try to scan in lineart mode, it makes garbage on output. > > > The scan seems "misaligned". > > > But if I first make a scan in gray or color mode, and then switch > > > to lineart, it works ! > > > > It works ... sometimes :( > > > > I acquire a scan in Lineart mode and make a log : > > http://www.starox.org/pub/sane/snapscan/lineart.log > > It makes dirty squares in the image : > > http://www.starox.org/pub/sane/snapscan/lineart.pnm > [...] > Maybe you can provide an USB trace of a lineart scan on windows. > You need to install an USB sniffer first. I prefer USBSnoop which is > available from http://benoit.papillault.free.fr/usbsnoop/ . The page > also gives basic instructions on how to use it. > > To produce the log you should > - unplug and replug the scanner > - Start the scanning software > - Do a preview scan > - Do a very small scan with lowest resolution I forgot to set the lowest resolution :(
So here is the tarball: http://www.starox.org/pub/sane/snapscan/epson%20perfection%20660%20-% 20lieart%20mode%20-%20usbsnoop.tar.bz2 Or go simply here if the link above don't work: http://www.starox.org/pub/sane/snapscan/ I made 2 scans, one with a small images (scanner tool says it's 765byte) and another one with full width. ========================== Offsets : 0 Plug the scanner in ... 2819458 Scanner preview ended * Click on acquire button 3790xxx Calibration stuff (it pause but I hadn't time to read the number) 3827264 scan of image 1 finished * Change the surface of acqusition (no activity on usb) and click on acquire button 480xxxx Calibration stuff 5322638 scan of image 2 finished ========================== You can ask me any other log, even if I'm busy, I'll answer ! Don't hesitate :)
