It could be that the code has bitrot since it was written as there were no tests. I noticed that many scanners didn't live up to the expectations set in the "supported scanners" web page.
Povilas On 9/15/19 11:24 AM, mfoolb bloofm wrote: > That is actually a bit frustrating considering I chose this model based > on the 'fully supported from 75 to 4800 dpi' info found on the sane > supported devices page (consider updating that). > I don't know how to help for the GL chip datasheet info. > > Thanks. > > Il giorno sab 14 set 2019 alle ore 19:42 Jeroen Van den Keybus > <[email protected] <mailto:[email protected]>> > ha scritto: > > Indeed 1200 and above does not work. If anyone has a datasheet of > the GL chip used, I may consider looking into it. > > It's a problem with the scan head motor that is not moving and > software waiting forever until it does. > > > On Sat, Sep 14, 2019, 4:39 PM Mikhail Novosyolov via sane-devel > <[email protected] > <mailto:[email protected]>> wrote: > > 14.09.2019 14:01, mfoolb bloofm пишет: >> Hello, >> >> I've just bought a Canon Lide 220 scanner but I can't make it >> work at 2400 or 4800 dpi. >> The scanner is supported 100% from 75 to 4800 dpi as of >> http://www.sane-project.org/sane-mfgs.html#Z-CANON. >> I'm using Ubuntu 19.04 and sane 1.0.27. >> Tried using simple-scan and genesys library on Gimp (2.10.8), >> if resolution is 2400 simple-scan freezes same thing on GIMP >> from 1200dpi and up. >> I need 2400 or 4800 dpi scan of little areas (2cmx2cm) of >> documents. >> Can anyone help me? >> Thanks. >> -- >> >> Marco. > > I think I heard something about 2400 DPI on Canon LiDE, but > don't remember what. > > Did you try installing latest sane git snapshot from PPA > https://launchpad.net/~rolfbensch/+archive/ubuntu/sane-git ? > > > > -- > > Marco.
