[sane-devel] USB for Umax Astra 2200 SU

[Klaus Dahlke]

On Sun, 26 Jan 2003 15:01:13 -0600
Frank Zago <fzago at 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.
> 

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?

Cheers,
Klaus