[sane-devel] dark line in scan

[Anderson Lizardo]

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Bill Jehle wrote:
> On Sat, Jul 09, 2005 at 04:02:32PM -0700, Bill Jehle wrote:
> 
>>I have an HP 6200C scsi when it runs it leaves a brown skidmark down
>>the left side of the image (see attached brown-line.png). I thought it was a bad lamp but it runs OK
>>with the HP app on Win2k.

Hi, I'm the maintainer of the geniusvp2 backend.

Hm... I have this very same problem with my backend. I thought at first
I've damaged the sensors while cleaning the mirror on the carriage,
because I was almost sure I've never seem that dark line before that...

The interesting here is that we have totally different scanners (mine is
a Genius ColorPage-Vivid Pro II) and backends, but the same problem. The
difference is that on my case the "dark line" is black (not brown). And
in my case, scanning on Windows also shows that line, although it's
almost invisible probably because of gamma correction which my backend
does not support yet.

My guess would be badly calibrated ADC...

- --
Anderson Lizardo
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