[sane-devel] CanoScan N650U (plustek backend) not working with Mac OS X 10.3.2 build 7D24

[Jaeger, Gerhard]

Hi,

can you please upgrade to the latest CVS-version?
What about using xscanimage or xsane?
I don't have any problems here with that scanner (on a
X86 Linux box)

Ciao,
  Gerhard

On Mittwoch, 24. Dezember 2003 19:28, Henrik Rintala wrote:
> Thanks for the informative answer.
>
> >> found USB scanner (vendor=0x04a9 [Canon], product=0x2206 [CanoScan],
> >> chip=LM983x?) at libusb:024:002
> >
> > The question mark after the chip id is a bad sign. It means, that
> > sane-find-scanner was unable to actuall talk to the scanner. It could
> > get its didentification but sending commands failed (usually because
> > the interface couldn't be claimed).
> >
> >> Henrik-Rintala:/usr/local/bin shr$ ./scanimage -L
> >>
> >> No scanners were identified. If you were expecting something
> >> different,
> >
> > [...]
> >
> > Try enabling debug message. E.g.
> > export SANE_DEBUG_PLUSTEK=255
> > export SANE_DEBUG_SANEI_USB=255
> >
> > To reduce the number of USB messages, diable everything but plustek in
> > dll.conf.
> >
> > There have been some reports that enabling debugging "fixes" libusb
> > problems on MacOS X in some cases. Even if it doesn't, you should get
> > a debug log that shows the exact error message.
>
> It seems that when I use export "SANE_DEBUG_SANEI_USB=x" where x => 5
> then the scanner is detected (chip=LM9832) and I can begin scanning.
> However, even though the scanner seems to "scan" the whole document,
> only part of it is saved to the file I specified. In every case, the
> file is exactly 110592 bytes and shows only about 1/3 of the document
> to be scanned (a book cover) in a quite low resolution. The file size
> is the same regardless of the file format specified (tiff or pnm).
> Also, the scanner light does not turn off and the scanimage process
> seems to "hang", i.e. nothing happens anymore on the terminal window I
> was using so I need to open another window to kill the process.
>
> Maybe there is some easy solution which I could try out since it
> already works partially.
>
> Thanks a lot in advance!
>
>         //
>         \\         Henrik Rintala
>         //         henrik at rintala.de
>         \\         shr at mac.com
>         //
>         \\         http://www.rintala.de
>         //
>         \\