[sane-devel] Canon DR-C125 option duplex-offset ist not recognized

[Christof Spitz]

Hello,

I installed the latest sane backend from 
http://ppa.launchpad.net/rolfbensch/sane-git/ubuntu in Ubuntu 14.04 LTS

It made my Canon DR-C125 run finally. Great, I was hoping for it for 
years! But: Every backpage from a duplex scan is cut at the bottom.

There is an option in the canon_dr.conf for the DR-C125:

option duplex-offset 400

But I don't notice any effect of this option, whatever number I try. 
Every backpage remains cut.

Thanks for any hints,
Christof