# [Fwd: [Fwd: [BUG] Epson 1640SU, xsane preview problem]]]

From: Jean-Luc Coulon (jean-luc.coulon@wanadoo.fr)
Date: Sun May 27 2001 - 03:19:06 PDT

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  attached mail follows:

  Hi Karl Heinz and Oliver

  Karl Heinz Kremer wrote:
  >
  > On Sat, May 26, 2001 at 09:26:11PM +0200, Jean-Luc Coulon wrote:
  > > Hi Karl Heinz
  > >
  > >
  > > Karl Heinz Kremer wrote:
  > > >
  > > > You've probably seen the black line at the top and left
  > > > edge yourself... I have no idea where this is comming from.
  > > > You sent me a preview created by XSane, can you please
  > > > make a "real" scan in the preview resolution - which is
  > > > either 50 or 72 dpi. If you want to be sure, you can
  > > > enable the debug mode for the EPSON backend and look
  > > > for the "SANE_START" lines:
  > > >
  > > I've not seen this line. It is a bit strange, I cannot load the file in
  > > The Gimp (it said that brightness has an incorrect value...)
  > >
  > > > export SANE_DEBUG_EPSON=5
  > > > xsane > /tmp/scan.log 2>&1
  > > >
  > > You will find attached :
  > > 1 - the part of the debug log saying my preview resolution is 50
  > > 2 - a scan "full size" of the same CD jacket as you got previously
  > > (real scan, 50 dpi)
  > > 3 - a scan of a corner at 600dpi.
  >
  > I loaded the pnm file in xv, converted it to TIFF and then used Gimp
  > to look at it. I've attached the TIFF file to this mail (just in
  > case you don't have access to xv).
  >
  > Regarding the 600 dpi image: Is it possible that you misunderstood
  > what I wanted? Probably because you've never seen the black
  > lines. I requested a scan of the upper left corner of the glass, not
  > of the CD jacket, the black lines are not around the image of the CD,
  > they are around the edge of the scan - and they do show up on the
  > 50 dpi scan as well.
  >

  Ok, I misunderstood....
  I've xv (useful to build preview icons in pictures directories).

  I've seen the black border... And finally, I managed to find who is the
  culprit.
  The lid of the scanner has a white glossy plastic sheet on foam, it is a
  bit small (or slighlty misaligned, I think too small). And what we can
  see is the grey plastic frame that support the white sheet...

  I think this can explain the problem. I have done more tests with
  several white paper sheets stacked. It is better but not 100% yet :
  often, the right and left lines are at 2cm apart of the document.

  I can survive with this but I will ask Epson if I can have the lid
  repaired. But, anyway the lid can move slightly : it is not "heavy
  metal" ! As the scanner has still warranty, I think they have to do
  that. Ermmm... ;-)

  ----------
  Thank you and best regards

  Jean-Luc

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