Gutenprint / CUPS Dye-sublimation drivers

  • Status New
  • Percent Complete
  • Task Type Bug Report
  • Category Magicard family
  • Assigned To No-one
  • Operating System All
  • Severity Low
  • Priority Medium
  • Reported Version 1.0
  • Due in Version Undecided
  • Due Date Undecided
  • Votes
  • Private
Attached to Project: Gutenprint / CUPS Dye-sublimation drivers
Opened by pizza - 2017-11-28

FS#588 - Registration/Alignment issue with Black plane

K extraction appears to work well, but when printing there's a registration problem.  The black layer appears to print several pixels higher than the color layers.

I'm not sure if this is something that needs a fixed offset applied, or is something that can vary printer-printer.

pizza commented on 2018-01-04 03:17

On my printer, the black data looks much better (but not perfect) if it's shifted down by 2 pixels.  Might need to shift it over by one pixel too.

This frankly seems a bit suspicious given that the color registration is spot-on. 

Or could one of the not-yet-figured-out firmware commands be there to adjust the K alignment?


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