[sane-devel] hp scanjet 4500 backend
Sun, 29 Aug 2004 11:12:08 -0600
>Does anybody know, if there is a backend to HP ScanJet 4500c scanner. I
>couldn't find anything which works.
>If there is no backend available i would be apreciative if anybody could
>give me specifications about the commands which it understands. I'm
>developer and would like to write a new backend.
>Any tips or advice before I start to write a backend?
I believe this is the same backend as the 4570c (and some five thousand
series model). The back end is "genesys" but it's very incomplete, and
my HP4570c only understands some of the Genesys commands. If you find
out what chipset it uses (I have a test script for genesys if you'd
like) (or by opening up the scanner) you can generally find good results
on that specific chip. Genesys publishes all of their register specs
(you can google for this, actually). I am (in my spare time, which is
very limited) working on the genesys backend.