Levente Nov?k writes: > On Thu, 2005-09-01 at 00:54 -0700, Bjorn Solberg wrote: >> > Another thing that I'm interested in is whether only the size of the >> > scan area is wrong or if the origins of the scan area are also not >> > set correctly (i.e. options -l and -t in scanimage) >> >> -x and -y are reduced by about 25% - i.e. I ask for 100mm and get only >> 75mm. >> >> -l and -t are ditto reduced by about 25% - getting only 75mm when asking >> for 100mm. >> >> > If it is always the same ratio of real distance to scanned distance >> > (also for -l and -t) it is most likely that the calculation of the >> > scan area is not handled correctly. That could be corrected by >> > changing the value of pos_factor in function set_window() in >> > snapscan-scsi.c.
> AFAIK the Epson is a 3200 dpi scanner while e.g. 2480 is only 2400 dpi. > 2400/3200=0.75. > Couldn't be this the problem? Duh. So maybe it's just a matter of finding the part of the code that governs this and set up a separate configuration for the 3490. Yet another issue is that scanimage seems to hang if I try to scan with resolutions over 1200 - could that be related? Bjorn.
