# Re: GT-9000 not working with transparency unit ?

From: Karl Heinz Kremer (khk@khk.net)
Date: Fri Apr 20 2001 - 14:00:47 PDT

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  I know that TPUs work with the newer EPSON scanners (the
  Perfection and Expression series). I have never worked with
  these older models.

  The fact that you can select the TPU means that the scanner
  communicates with the TPU and the backend gets informed
  about the presence of the TPU.

  Can you please create a log file file and email this to me (khk@khk.net)

  export SANE_DEBUG_EPSON=128

  Then start your scanning application (e.g. xscanimage or xsane) with
  the following output redirection:
  xsane > /tmp/scan.log 2>&1

  Then only select the TPU as scan source and start the scan. This log
  file will contain every bit that is exchanged between the scanner and
  the backend, so if you first start a regular scan, you will end up
  with megabytes of useles data. I am only interested in the setup
  of the scanner and the actual scan request.

  Karl Heinz

  On Fri, Apr 20, 2001 at 08:03:57PM +0200, Marius OANCEA wrote:
  > Hi,
  > I have a GT-9000, and I use this scanner with sane (latest version), in
  > SuSE 7.1
  > Everything appears to work ok except "transparency unit".
  >
  > If I set "Transparency unit" instead of "flatbed", I get "Failed to
  > start scanner: Operation not supported exception" error message.
  >
  >
  > What should I do ?
  >
  > P.S. I neeeeed to scan transparent slides and photographic films.
  > Thanx a lot.
  > mariuso
  >
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