I really don't know but would hypothsize that at least the dimension
along the sensor bar is probably working at full resolution and then
averaging since all the sensor positions are fixed. The opposite
dimension (where the stepping motor is moving the scanning bar) might
conceivably be handled differently but I suspect it's probably easiest
to simply do full resolution there as well and average all 16 pixels.
All the hardware motions and signals would remain the same. The only
change would be in the firmware or driver software.
But I'll repeat... I dunno.
Chuck Norcutt
Wayne Harridge wrote:
> If I have a scanner which has a native resolution of 4800 ppi but I
> then scan at 1200 ppi, how is that handled by the scanner ? Does the
> scanner just use 1 pixel of each 4 or does it average over the 4
> pixels ?
>
> ...Wayne
>
> Wayne Harridge
>
> http://lrh.structuregraphs.com
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