Apologies for the long To: list; I haven't been able to determine
whether the problem I'm having is caused by Jeremy Hall's
(experimental) usb-scsi driver, by the Avision SANE backend, or by
something else entirely. If I can narrow it down to one subsystem,
I'll make sure to trim the list.
I'm seeing weird rainbow-colored stripes, repeating about every
half-inch, whenever I scan anything with my HP ScanJet 5300C.
Pictures are available at:
scan1-crop is the top inch of the scan, and scan1 is the entire image.
I can get these stripes to go away by plugging the scanner into a
Windows machine, using HP's software once, then plugging it back into
my Linux machine. That points to an initialization problem, but I
haven't seen anybody else complaining about this scanner exhibiting
I'm using Jeremy Hall's experimental usb-scsi driver patch (from
Tobias Nijweide's page at:
) against a 2.4.0-test12 kernel, and the Avision SANE backend, with
the patches from Tobias' page.
I've tried the --quality-cal option to SANE, and I've tried at various
resolutions, and at color, greyscale, and line-art mode, and all have
the same effect (except that the rainbow colors are grey or black in
Has anybody seen similar problems? Or does anybody have any ideas
about how to go about troubleshooting/fixing this?
I have about a week to figure this out; after that, I'll just return
the scanner, and pay closer attention to model numbers. :-)
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This archive was generated by hypermail 2b29 : Tue Dec 26 2000 - 18:24:06 PST