[sane-devel] scans on HP ScanJet 3400C come out black

Ullrich Sigwanz us@bernafon.ch
Thu, 19 May 2005 09:47:42 +0200

Hi Emerson,

I could imagine that it is number format problem in the interface between
the backend (NIASH) and the SANE API (a guess)

Could you please try the testtool (backend) on


and make a scan to clarify.

Make sure that make, gcc and the libusb headers are installed, 
before compiling by make - please have a look at the included README 
how to operate the testtool

just call (after having unpacked the tar.gz)

> make 

> ./testtool -s ./test.pic

then open "test.pic" with e.g. GIMP