[sane-devel] Mustek BearPaw 4800 TA Pro

Fri Oct 10 10:26:03 BST 2003

Hi,

On Wed, Oct 08, 2003 at 10:48:29PM +0200, Miroslav Jurkas wrote:
> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

Please use plain text (not html only) in mails sent to the sane-devel
mailing list.

> I have recently got a Mustek BearPaw 4800 TA Pro scanner and there is
> no driver (yet) for SANE.

> So, I did a little investigation and know a little about chips in this
> scanner (from internet):
> ALI M5623 (USB 2.0 scanner bridge) - 2 pages PDF
> Analog Devices AD9826 (A/D converter) - 20 pages PDF
> NEC uPD8880 (CCD) - 24 pages PDF
> So, for the most important part, least information...

As usual...

Could you show us the links to that PDFs so we cann add them to our
information pages about that scanner?

> Also did some very basic testing on W$ with original software (only
> have had USB 1.1). Not very good (certainly under my expectations) in
> performance in scan quality.

Please show us the output of "cat /proc/bus/usb/devices" in Linux,
when the scanner is plugged-in.

> I'm willing to spend some time in next few months on making or helping
> with driver development and/or testing if there is a good chance to get
> proper result.

That's cool! I guess you already found the pages about starting to
write a backend but just in case you haven't:

http://www.sane-project.org/contrib.html
http://www.meier-geinitz.de/sane/misc/develop.html

> Has anybody tried to contact Mustek about technical documentation and
> tried to get help from?

I haven't asked about that scanner but when I worked on the mustek_usb
backend I got quite some information from them. Try asking Tom Wang
<tom.wang at mustek.com.tw>. I haven't talked to him for quite some
time, however.

> What about ALI Corporation?<br>

No idea. It doesn't harm to ask. Maybe you should point to our
manufacturers page: http://www.sane-project.org/manufacturers.html

If you like to find out if there are other scanners using that chip,
it may help to add support to sane-find-scanner to detect the chip.
See the code in tools/check-usb-scanner.c.

Bye,
  Henning