[sane-devel] Mustek/Paragon MFS-8000SP oddity

Henning Meier-Geinitz henning at meier-geinitz.de
Sun Apr 9 11:31:58 UTC 2006


On 2006-03-06 21:55, Dexter Filmore wrote:
> sane 1.0.17 on Slackware-current, Mustek/Paragon MFS-8000SP attached to 
> Symbios Logic 53C810A, active termination.
> Device scan, results are ok, but it is slow due to _how_ it works:
> The scan bar proceeds about 10mm, then jumbs back 5mm, scans 10mm, jumps back 
> 5mm, etc etc all the way over the document.

This is done by the scanner itsself. It can't be influenced by the
backend directly. The extremely small buffer in the scanner gets full
and then it has to go back and start scanning again.

> So a 300dpi scan takes over 3 minutes.
> In Windows with official drivers it walks through the scan in one big sweep, 
> thus noticably faster. 

There is no difference in the SANE backend compared to the Windows
driver. The only difference seems to be that with some SCSI cards,
Linux seems to be a little bit slower or has a little bit more latency.

There are some tips that may or may not work on the mustek backend



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