Alex, On Sun, Jun 30, 2013 at 01:56:08PM +0300, Alex Eftimie wrote: > On Sun, Jun 30, 2013 at 1:31 PM, ABC <abc at telekom.ru> wrote: > > > > It maybe be becasue (it is possible) that smfp using different scanning > > mode, like different resolution. (And then doing some image conversion > > internally.) xerox_mfp driver's settings are 'physical' for the device. > > Well, I'm setting the resolution myself, with --resolution=300 (the > same for xerox_mfp and smfp). Also, I'm using as color mode: "Lineart" > for xerox_mfp and "Black and White - Line Art" for smfp. But still 4 > seconds vs 10 seconds. Can I get 'physical' with smfp :D?
It is possible that smfp is using different actual scanning mode, like different resolution, and then doing some image conversion internally. smfp is proprietary so you should contact lovely Xerox/Samsung for explanations. > > I wonder what you meant by this: > > > >> I managed to get it working by using the proprietary drivers from > >> ... but the usb problem remains. > > > > Did you mean there is different usb problem with smfp driver? And what > > was usb problem with xerox_mfp? > > The usb problem with xerox_mfp was that `scanimage -L` shows the > xerox_mfp device only once, then it disappears. I need to replug the > USB in order to see it again, but this also means I cannot scan with > xerox_mfp. I can only reproduce this on a new laptop with usb 3.0 > ports. Same kernel and SANE, old laptop -> no problem. > > There is no problem with smfp, aside from the speed. Ah. Thanks for exmplaining. > I can only reproduce this on a new laptop with usb 3.0 xerox_mfp driver is also using internal sanei library for workign with usb. So problem may be there. (I don't know what smfp driver is using.) -abc