# BOUNCE sane-devel@mostang.com: Admin request of type /\bcancel\b/i at line 5

From: owner-sane-devel@mostang.com
Date: Wed Jul 18 2001 - 19:32:15 PDT

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  >From sane-devel-owner@mostang.com Wed Jul 18 19:32:13 2001
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  From: Mick Barry <mick@objects.com.au>
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  To: sane-devel@mostang.com
  Subject: Re: "Epson and SANE/XSANE problem
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  Karl,

  Would appreciate if you could have a play.
  Not sure on the interaction involved with an xsane preview, but the
  problems I was experiencing was trying to send a cancel request, while a
  scan was in progress.

  mick

  Karl Heinz Kremer wrote:

  > Hmmm... All I know is that it worked for me yesterday. I did
  > cancel a preview after I realized that I wanted a B/W scan
  > instead of a color scan, so I did a "Cancel Preview". This
  > was with an Expression1680 connected via USB.
  >
  > It is possible that depending on the right or wrong moment of
  > hitting the button the problem either shows up or not...
  >
  > I'll do some experimenting over the weekend.
  >
  > Karl Heinz
  >
  > On Tue, Jul 10, 2001 at 05:18:56PM +0200, Jean-Luc Coulon wrote:
  >
  >> Hi,
  >>
  >> I've remarked this problem when using the preview:
  >>
  >> If I click on "Acquire preview" then, while running, "cancel preview"
  >> I get the following message :
  >> "Backends sends more image data that it defined in parameters"
  >>
  >> Then, if I click again on "Acquire preview", I get the message :
  >> "Failed to start scanner: Invalid argument"
  >>
  >> I cannot close xsane with the [X] button, I've to kill the task from the
  >> window manager. At this point, xsane is eating most of the cpu ; Only a
  >> "kill -s 15" is able to kill the task.
  >>
  >> Then if I start xsane again, it stay in the state "scanning for
  >> devices".
  >>
  >> After a while, I get:
  >> usb_control/bulk_msg: timeout
  >> scanner.c: write_scanner: NAK received.
  >>
  >> To be able to have the system to work again, I've to do a power off/on
  >> of
  >> the scanner. Sometimes, I get:
  >> "scanner.c: close_scanner(0): invalid scn_minor"
  >>
  >> system is :
  >> linux 2.2.20pre (the same occurs with 2.2.19 or 2.4.6-ac).
  >> sane-backends-1.0.5
  >> xsane-0.78
  >> The scanner is an Epson Perfection 1640SU Photo.
  >>
  >> ----------
  >> Regards
  >> Jean-Luc
  >>
  >>
  >> --
  >> Source code, list archive, and docs: http://www.mostang.com/sane/
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