[sane-devel] Avision Status

m. allan noah kitno455 at gmail.com
Sat Jan 29 16:19:43 UTC 2011

Sounds like a pretty good list of fixes. You might find that using -1
for image length causes problems for some frontends. I would pad the
image to the requested size, unless the user sets some option that
they want the image cropped. the fujitsu backend uses the --ald option
for this.


On Sat, Jan 29, 2011 at 7:07 AM, Mike Kelly <mike at piratehaven.org> wrote:
> Hi everyone,
> I'm pleased to announce the support of the duplexing ADF on HP 8200 series
> scanners, which includes the 8200, 8250, 8270, and 8290.  Additionally, I've
> (re)added support for the Avision AV220-G scanner which seems to have
> suffered from a regression in the code.  I've just committed these, along
> with several other fixes, to the repository.  A big thanks to Steve Lipinski
> for lion's share of USB dumping and tirelessly applying patch after patch to
> get the HP 8200 series working.
> For the sake of future Avision users scanning the mail archive, I'm going to
> list the remaining known issues with the backend.  I've only recently taken
> over maintenance of the backend, so this list may not be complete:
> 1) The Avision AV120 is suffering from a regression.  I think seeing a
>   Windows USB dump will give some clues as to why it's not working.
> 2) The Avision AV220-G doesn't correctly handle resolutions above 300 dpi.
>   This hardware is capable of 600 dpi.  I'm still looking at this one.
> 3) The HP 8200 series doesn't correctly handle resolutions above 2400 dpi.
>   This hardware is capable of 4800 dpi.  I'm just starting to look at this
>   problem.  Testers always welcome.
> 4) I have had one report that color scans on the Visioneer Xerox Documate 510
>   produce banded output.  I've looked at the resulting scan image with its
>   strange color banding, but I'm not sure what is causing it.  I'm seeking
>   a tester who can do Windows USB dumps with this scanner.
> Mike
> (:
> --
> --------Mike at PirateHaven.org-----------------------The_glass_is_too_big--------
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