Hi,
Karl Heinz Kremer wrote:
>> The Other thing is: Which interface to choose? I need to engineer the
>> fastest solution possible, so I think SCSI is the fastest, am I right?
>> Is the sane-backend so "abstract" that it can handle the scanner at
>> USB/SCSI/FireWire or no matter what, or do I need special support for
>> the interface?
>
>
> I cannot talk for the Avision scanner, but the EPSON backend will work with
> all three interfaces.
> [ ... ]
The Avision backend "only" supports SCSI and USB - there are no Avision
scanners in wide use (only one OEM model if I'm informed right).
>> I need non-interlaced mode for single-pass scanning, am I right?
>> Is there any limit regarding speed or quality compared to the original
>> windows driver assumed that the sane-driver is well adopted?
>
>
> Pretty much all modern scanners I know work in single-pass mode. All three
> colors are scanned in one pass.
Yep. I talked about the way the Duplex scans are handeled. If the page
is feed thru the CCD two time, or a two CCD units are available and thus
the image data is normally interlaced.
Currently the Avision backend only implements the later. When I get (or
someone has a scanner to report debug output) I will add non-interlaced
support for those "older / low-cost" devices.
Yours,
--
René Rebe - Rubensstr. 64 - 12157 Berlin (Europe / Germany)
http://www.exactcode.de | http://www.exactcode.de/t2
+49 (0)30 255 897 45
