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<H1>please advise: Mustek 12000SP, NCR810 &amp; color stripes</H1>
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<STRONG>From:</STRONG> FJA van Zijp (<A HREF="mailto:ferencj@xs4all.nl?Subject=Re:%20please%20advise:%20Mustek%2012000SP,%20NCR810%20&amp;%20color%20stripes&In-Reply-To=&lt;3A6AADDE.12558.8739D8F@localhost&gt;"><EM>ferencj@xs4all.nl</EM></A>)<BR>
<STRONG>Date:</STRONG> Sun Jan 21 2001 - 00:37:34 PST
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Yikes. I think I got a severe case of coloredstriperitis.
<BR>
<P>Scanned color images show horizontal lines, one pixel high. The
<BR>
colors of these lines are clearly off. They seem to lack one or two of
<BR>
the RGB components.
<BR>
<P>I'm not sure if these are the horizontal stripes that are mentioned in
<BR>
the SANE literature, because I only saw one example on the Mustek
<BR>
backend homepage which looked quite different from my images.
<BR>
Have a look at
<BR>
&lt;a href=&quot;<A HREF="http://www.xs4all.nl/~ferencj/stripe.gif">http://www.xs4all.nl/~ferencj/stripe.gif</A>&quot;&gt;
<BR>
www.xs4all.nl/~ferencj/stripe.html
<BR>
&lt;/a&gt;
<BR>
for one of my images with this problem.
<BR>
<P>I have a Mustek ScanExpress 12000SP (says the cover) with
<BR>
firmware 2.02 (says SANE). The scanner is tied to a nameless
<BR>
NCR810 SCSI card, no other SCSI devices are involved.
<BR>
<P>Slackware 7.1, kernel 2.2.17 drives the linux box, ncr53c7,8xx.o
<BR>
drives the card. SANE 1.0.4 with Mustek backend 1.0.4 compiles
<BR>
flawlessly - BTW I only compile the backends mustek and v4l to save
<BR>
time.
<BR>
<P>Changing the SCSI driver (to ncr53c8xx.o or sym53c8xx.o) doesn't
<BR>
help. Neither does changing the resolution. Also, altering
<BR>
mustek.conf doesn't help. I tried an active terminator on the unused
<BR>
scanner port, scanner doesn't work at all.
<BR>
I'm running out of options here.
<BR>
<P>Incidentally, the setup (SCSI card, -cable, scanner and SANE (don't
<BR>
remember which version though)) used to work fine in another linux
<BR>
machine.
<BR>
<P>Scanner also performs OK with Mustek s/w, but this is on another
<BR>
machine, another cable, another card and of course on another OS.
<BR>
<P>Sorry to be a bit long, but I thought you'd want this information.
<BR>
<P>Please advise.
<BR>
<P><P>thanks for reading this far &amp; cheers
<BR>
<P>Ferenc
<BR>
<P>PS: scanimage -L output:
<BR>
<P>[sanei_debug] Setting debug level of mustek to 5.
<BR>
[mustek] SANE Mustek backend version 1.0 build 104 (SANE 1.0.4)
<BR>
[mustek] sane_init: authorize != null
<BR>
[mustek] sane_init: using sanei_scsi_open_extended
<BR>
[mustek] sane_init: reading config file `mustek.conf'
<BR>
[mustek] sane_init: config file line 1: strip-height set to 1 inches
<BR>
[mustek] sane_init: config file line 2: trying to attach `/dev/scanner'
<BR>
[mustek] attach: trying device /dev/scanner
<BR>
[mustek] dev_open /dev/scanner
<BR>
[mustek] dev_open: /dev/scanner is a SCSI device
<BR>
[mustek] dev_open: wanted 8 kbytes, got 8 kbytes buffer
<BR>
[mustek] attach: sending INQUIRY
<BR>
[mustek] scsi_unit_wait_ready: sending TEST_UNIT_READY
<BR>
[mustek] scsi_unit_wait_ready: TEST_UNIT_READY finished
<BR>
[mustek] attach: SCSI Vendor: `SCANNER ' Model: ` ' Rev.: `2.02'
<BR>
[mustek] attach: SCSI Type: Scanner; ANSI rev.: 1
<BR>
[mustek] attach: SCSI flags:
<BR>
[mustek] attach: inquiry output:
<BR>
[mustek] 06 00 01 01 5b 01 00 00 53 43 41 4e 4e 45 52 20 ....[...SCANNER
<BR>
[mustek] 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20
<BR>
[mustek] 32 2e 30 32 4d 55 53 54 45 4b 20 20 20 43 30 36 2.02MUSTEK C06
<BR>
[mustek] 20 53 31 32 49 44 57 4d 31 32 33 37 39 37 01 40 S12IDWM123797.@
<BR>
[mustek] 01 03 01 01 00 00 00 00 00 00 00 00 00 00 00 00 ................
<BR>
[mustek] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff ................
<BR>
[mustek] attach: found Mustek scanner (new firmware format)
<BR>
[mustek] attach: old firmware revision system
<BR>
[mustek] attach: firmware revision 2.02
<BR>
[mustek] attach: scanner id: C06 S12IDW
<BR>
[mustek] attach: this is probably a ScanExpress series A4 scanner
<BR>
[mustek] attach: this is a single-pass scanner
<BR>
[mustek] attach: scanner supports transparency adapter (TA)
<BR>
[mustek] attach: scanner cover is closed
<BR>
[mustek] attach: found Mustek ScanExpress 12000SP flatbed scanner, 1-pass, TA, SE
<BR>
[mustek] sane_init: config file line 3: ignoring comment line
<BR>
[mustek] sane_init: config file line 4: ignoring comment line
<BR>
[mustek] sane_init: config file line 5: ignoring comment line
<BR>
[mustek] sane_init: config file line 6: enabling lineart-fix for /dev/scanner
<BR>
[mustek] sane_init: end
<BR>
[mustek] sane_get_devices: 1 devices
<BR>
[mustek] sane_get_devices: end
<BR>
device `v4l:/dev/video0' is a V4L UNSET virtual device
<BR>
device `mustek:/dev/scanner' is a Mustek ScanExpress 12000SP flatbed scanner
<BR>
[mustek] sane_exit
<BR>
<P><PRE>
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