# Umax Astra 610S fails >150dpi lineart

From: Hans Eriksson (d97-hae@nada.kth.se)
Date: Sat Oct 28 2000 - 01:37:26 PDT

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  Hello everyone!

  I've just compiled and installed Sane 1.0.3 and Sane Umax 1.0.3 build 24
  on a machine running Linux with kernel 2.4.0 (RedHat 7.0).

  Scanning with my Umax 610S works fine in both colour and grayscale at
  resolutions up to 300 dpi, but _not_ in lineart mode at resolutions
  greater than about 150 dpi. When I try to scan an image in lineart mode at
  this resolution (>150 dpi) the scanner first stops half-way and then
  return to its initial position.

  Does anyone know of a solution to this odd behaviour?

  The scanner is attached to a Tekram DC390 card (the one with the AMD
  chip) which uses version V2.0e4 of the tmscsim kernel module.

  Here's some debug output while scanning a lineart image:

  [umax] umax_reader_process: buffer of 466824 bytes read; 649038 bytes to
  go
  [umax] umax_queue_read_image_data_req for buffer[0]
  [umax] umax_queue_read_image_data_req: id for buffer[0] is 0x804ec10
  [umax] umax_reader_process: read image data queued for buffer[0]
  [umax] umax_wait_queued_image_data for buffer[1] (id=0x8053fb0)
  [umax] sane_read: read 4096 bytes
  [umax] umax_wait_queued_image_data: wait returned status Device busy
  [umax] ERROR: umax_reader_process: unable to get image data from scanner!
  [umax] reader_process: freeing SCSI buffer[1]
  [umax] sane_read: read 3976 bytes
  [umax] sane_read: read 0 bytes
  [umax] do_cancel
  [umax] killing reader_process
  [umax] reader_process: terminated by signal 15
  [umax] reader_process killed
  [umax] trying to reposition scanner ...
  [umax] umax_reposition_scanner: command returned status Device busy
  [umax] trying to release scanner ...
  [umax] umax_give_scanner: command returned status Device busy
  [umax] closing scannerdevice filedescriptor
  [umax] closing pipe
  [umax] sane_cancel
  [umax] sane_close
  [umax] sane_exit

  Regards

  Hans Eriksson

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