[sane-devel] Re: sane-devel digest, Vol 1 #251: HP Scanjet 7400 C

[Pramathesh Ambasta]

I had a similar problem (black scans with HP Scanjet 7400C; OS: Mandrake
Linux 9.2). I had also reported this to the list.
I tried patching the source and recompiling as suggested below. The
compile succeeded. Sane detected the scanner (which is now a
scsi-generic scanner instead of the earlier usb scanner).
However xsane hangs on clicking the button "Acquire preview".
What have I got wrong?
Will appreciate help on this.
Pramathesh Ambasta 

<quote>
To: erik@epo.dk
Cc: sane-devel@lists.alioth.debian.org
From: Rene Rebe <rene@rocklinux-consulting.de>
Subject: Re: [sane-devel] Problem with HP 7400C.

Hi,

On: Wed, 17 Mar 2004 20:09:20 +0100,
    "Erik P. Olsen" <erik@epo.dk> wrote:
> I am running a vanilla Fedora Core 1 and I think I have implemented a=
ll
> the advice I have found in the mailing list and elsewhere. I have com=
e
> to the point where the sound leads me to believe that it scans correc=
tly
> - at least black/white (line art). However, the scanned image is all
> black. When I increase the brightness to 50 the image becomes all whi=
te.
> =

> Is this a driver bug - or am I missing something?
> =

> When I set it to scan colour it also produces all black images but it=

> also sends out a horrible noise but I believe this is part of the
> problem.
> =

> What can I do to overcome this problem?

It looks like you run a very old version of SANE/Avision. Just update
to:

http://svn.rocklinux-consulting.de/sane-avision/trunk/backend/
http://www.rocklinux-consulting.de/oss/avision/

It should just work then. (incl. ADF and 16 bit scans)

> Regards,
> Erik P. olsen

Yours sincerely,
  Ren=E9 Rebe
    - ROCK Linux stable release maintainer

--  =

Ren=E9 Rebe - Europe/Germany/Berlin
  rene@rocklinux.org rene@rocklinux-consulting.de
http://www.rocklinux.org http://www.rocklinux-consulting.de
http://gsmp.tfh-berlin.de/gsmp http://gsmp.tfh-berlin.de/rene

</end quote>