plustek: Plustek 9636T scans color/grey incorrectly
Subject:
Re: Plustek 9636T scans color/grey incorrectly
From:
"Jaeger, Gerhard" ####@####.####
Date:
22 Jan 2001 11:48:09 -0000
Message-Id: <01012212545904.00855@gja>
Mark, is the module lp.o loaded?
On Mon, 22 Jan 2001, Mark Bratcher wrote:
> Gerhard,
>
> Thanks for the prompt reply.
>
> > - is there a printer attached to the scanner?
>
> No
>
> > - are you using version 0.37 of the driver?
>
> Yes
>
> > - can you send us the output of cat /proc/pt_drv/device0/info?
>
> Model : 9636T/12000T
> Portaddress : 0x378
> Portmode : EPP
> Buttons : 0
> Warmuptime : 30s
> Lamp timeout: 180s
> mov-switch : 0
> I/O-delay : 0
> CCD-Type : 3797
>
> > - is your parallelport switched to plain EPP mode in BIOS?
>
> Yes
>
> Also, just fyi, my parallel cable is 4 feet long (not very long).
>
> > This problem is quite strange, because the ASI98001 based models
> > in general won't loose data.
>
> I thought that was the case. I'm having trouble understanding the
> problem. Even on the Preview the image is corrupted. If I just do
> consecutive previews, the corruption is different each time. Sometimes I
> get vertical cyan and magenta stripes in white areas. Sometimes white
> areas are OK, but vertical black lines, for example, have a cyan shadow
> or ghost.
>
> Mark
>
> >
> > On Son, 21 Jan 2001, Mark Bratcher wrote:
> > > Hi.
> > >
> > > I have Linux kernel 2.4.0 and the latest official Sane and Plustek
> > > driver (pt_drv) downloads as of 1/20/2001.
> > >
> > > I installed everything OK as far as I can tell, and I can scan images.
> > > However, only pure black and white images come out OK. Color and
> > > greyscale are blurred, or more specifically, the different color/grey
> > > "planes" are offset from one another. The offset is not consisten from
> > > scan line to scan line, so it's as if it were a data loss problem (?).
> > >
> > > Anyway, I'm running a Pentium II / 233MHz and 128MB RAM. I have nothing
> > > else running while scanning.
> > >
> > > Just as a note: I had the same problem under the 2.2.17 kernel. And the
> > > scanner runs fine under Windows 95.
> > >
> > > Thanks for any helpful input.
> > >
> > > --
> > > Mark Bratcher
> > > ####@####.####
> > > ---------------------------------------------------------
> > > Escape from Microsoft's proprietary tentacles: use Linux!
> >
> >
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--
+---------------------------------
| Sysgo Real-Time Solutions GmbH
| Gerhard Jaeger
| Schulze-Delitzsch-Weg 28
| D-89079 Ulm
| mail: ####@####.####
| fon: +49 731 94683-0
| fax: +49 731 94683-10
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