# RE: Highscreen - realscan

From: khk@khk.net
Date: Tue Aug 01 2000 - 03:16:17 PDT

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  It is possible that you just have a dust problem: On most scanners the
  scan head needs to be calibrated during the startup phase. This is usually
  done by placing it under a calibration image that is usually inside the
  housing. If you have dust on this target, then the calibration will
  not work for those pixels that scan the dust particles.

  Karl Heinz

  agittins <agittins@bigpond.net.au> said:

  > Hi Joachim,
  > Have you tried scanning a color image in using windows or something?
  >
  > I think the problem may be with your scanner - the blue lines could indicate
  > that the bulb (actually, it's probably a tube) may have an uneven light
  > pattern, or the scan head may react differently to blue light along it's
  > width.
  >
  > If you rule out a software problem, by trying it in windows for example, you
  > will know for sure if it is hardware or software.
  >
  > If the scanner is new, this should be a valid warranty claim, otherwise you
  > might be able to get it repaired, but I don't know - it will depend on the
  > scanner and who you may have available to fix it.
  >
  > Definitely try it using different software to be sure first though.
  >
  > -----Original Message-----
  > From: owner-sane-devel@mostang.com
  > [mailto:owner-sane-devel@mostang.com]On Behalf Of Joachim Schiele
  > Sent: Tuesday, 25 July 2000 12:25 AM
  > <snip>
  > i have a Highscreen - realscan from Vobis and it works pretty well in
  > S/W mode but when i want to scan colored images "color" it's stupid
  > because there are some vertical blue lines in the image. i have
  > included a jpg which shows a scan "black background" with the blue
  > lines in front.
  >
  > what is working:
  > -S/W scan with 1-300 dpi
  > -i think all except the color scan mode
  >
  > i use xscanimage
  > <snip>
  > joachim
  >
  > --
  > From:
  > Joachim Schiele <js@dune2.de>
  > [ http://www.dune2.de || Linux - my way! ]
  >
  >
  > --
  > Source code, list archive, and docs: http://www.mostang.com/sane/
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  >

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