[sane-devel] Has anyone fought against RICOH SP4510SF?

[0d0acre]

Hi to all! Has anyone some experience with the RICOH SP4510SF[0]?

Trying now to use it as a scanner and find out that no proprietary linux 
drivers are available and that is not supported officially by SANE[1].

Where do I start to add support for it?

Thanks for the infos,
odo

[0]: http://support.ricoh.com/bb/html/dr_ut_e/re2/model/sp4510/sp4510.htm
[1]: http://www.sane-project.org/sane-mfgs.html#Z-RICOH