[sane-devel] USB for Umax Astra 2200 SU

Klaus Dahlke klaus.dahlke@gmx.de
Sun, 26 Jan 2003 21:49:24 +0100

On Sun, 26 Jan 2003 15:01:13 -0600
Frank Zago <fzago@austin.rr.com> wrote:

> Klaus Dahlke wrote:
>  > Hi all,
>  >
>  > I have a problem with my Umax Astra 2200 SU (it has both connectors, SCSI and
>  > USB). SCSI and USB works fine with Win98 (i.e., hardware is okay), SCSI works
>  > also under Linux (for various reasons I am thinking of switching to USB).
>  > When attached to USB, scanner is detected by xscanimage on either
>  > /dev/usbscanner or /dev/usb/scanner0. I can nicely do a preview or multiple
>  > previews. But when I want to do the actual scan, the scanner starts with some
>  > action (about a second or so) and then do nothing. The output from strace is
>  > continuously producing:
>  >
> Hi Klaus,
> Have you disabled "quality calibration" option? If not, do it and try again.
> Frank.

thanks for the quick reply. With having "quality calibration" switched off, it wokrs fine now.

Is then there any loss in quality compared to SCSI with "quality calibration"  switched on?