Public bug reported:
The Canon N640P *does* work in Ubuntu - not with graphical frontends,
but with scanimage(1). Please make sure you read this article before
commenting: http://azabani.com/articles/scanner
During a greyscale scan, only the green light is switched on. During a
colour scan, all three (red, green, blue) lights should be switched on.
I've enabled the "canon_pp" driver, allowing scanimage(1) to detect the
scanner.
However, the driver has a bug where only the red and blue lights, not
the green one, is switched on during a colour scan. Now all colour scans
are heavily magenta-tinted.
I have tested this with an N640P and an N640Pex - both of which show
this problem, and both of which don't have this problem in Windows XP
(probably ruling out a hardware issue).
** Affects: ubuntu
Importance: Undecided
Status: New
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Colour scans using Canon N640P are magenta tinted
https://bugs.launchpad.net/bugs/604453
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