[sane-devel] Question about the Canon Lide 30 behaviour

[Alexander Neundorf]

Hi,

since some weeks I have a Canon Lide 30 scanner and everything works well. 
I have sane 1.0.13 installed.

The only question I have is the following:

when I start scanning (full or preview) the scanner starts doing some stuff, 
which takes several seconds, maybe up to 20 seconds or something, and after 
this it actually starts scanning, i.e. the scan line starts to move.

What is it what is happening at the beginning ? Is this some kind of 
calibration ? Maybe white reference ? 
Is it required that this is done before every single scan ?

Bye
Alex
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