[sane-devel] problem with epson driver: noise in scans

Karl Heinz Kremer khk@khk.net
Sun, 16 Jun 2002 09:04:12 -0400

Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

I have never received any reports about problems with noise in=20
scans, so I would suspect a hardware problem. What confuses me
is that your problems only show up in binary scans. if it's
really a hardware problem, it should be more obvious with
color scans.

Can you eiher provide a link to a sample, or send it to me as
an email attachment?

Karl Heinz

On Sat, Jun 15, 2002 at 10:21:39PM -0700, Henry House wrote:
> I am having a problem with an Epson Perfection 636 scanner (SCSI) and SANE
> 1.0.7. The OS is Debian GNU/Linux. The problem is that scans have what lo=
> horizontal lines of random white and black pixels all over the scan. (Sam=
> available upon request.) This occurs in all resolutions I have tried but =
> in the binary mode. (Color scans fine.) I have checked SCSI termination a=
> it appears to be fine, though I have a suspicion that the Linux driver for
> the machine's on-board SCSI (AM53/79C974 PCscsi) is flakey.
> Does anyone have any ideas?
> --=20
> Henry House
> The attached file is a digital signature. See <http://romana.hajhouse.org=
> for information.  My OpenPGP key: <http://romana.hajhouse.org/hajhouse.as=

Karl Heinz Kremer                                  khk@khk.net
PGP Key at                 http://www.khk.net/download/khk.asc
EPSON Sane Backend:                         http://www.khk.net

Content-Type: application/pgp-signature
Content-Disposition: inline

Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see http://www.gnupg.org