[sane-devel] Lexmark CX510de printer / scanner

2018-04-09 Thread Pierre THOMAS

  
  
Bonjour,
  
  When I use xane with
my HP Scanjet G4050 scanner, it is possible to define a frame (dot lines) in the
preview window
before scanning.
  
When I use xane with my Lexmark CX510de
scanner, it is impossible to select a frame in
the preview window (no
  dot lines), I
  am obliged to scan the
full image.
  How
can I solve this problem
?

 Regards,

Pierre

  


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[sane-devel] Offset problem

2018-04-09 Thread Pierre THOMAS

  
  
Bonjour,
  
  I use HP Scanjet G4050 scanner with
Mageia Linux 6 / xsane version 0.999.
When I select a frame in the preview
  window, the resulting image is
correct for a 100 dpi resolution.
For a 200 dpi resolution there is
  a negative vertical offset, I mean about 2 mm are
  missing at the bottom of the picture (about 2 mm added
  at the top).
  For 200, 400 and 600 dpi
resolution there is a positive offset, I mean about
2 mm are missing at the top of the image (about 2 mm
added at the bottom)

What can I do to solve this
  problem which is very annoying. I do
  not want to have to reboot to Windows ...
  
  When I use the scanner
with Windows (in the same PC), with the HP
software or with the Windows scanning
software the result is correct.
  
  Regards,

Pierre

  


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[sane-devel] Adding support for scanner

2018-04-09 Thread John Oliver
I have a Canon imageCLASS MF416dw that does not appear to be supported
by sane.  How can we get it added?  I'm happy to do whatever legwork I
can.

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Re: [sane-devel] What does basic support mean on the supported devices page for Plustek Opticbook 3600?

2018-04-09 Thread Alex ARNAUD

Le 09/04/2018 à 14:50, Olaf Meeuwissen a écrit :

The meaning of "basic" and other status classifiers are explained in the
Legend at the bottom of the page.  There's a link near the top, BTW.


Thank you very much.


for the latest information.  FWIW, the support status of the scanner you
mentioned has *not* changed.


What is the reason that make a device support to basic? The lack of time 
or the lack of documentation? In another word, if I tell to my user that 
his scanner works, if some feature is missing, could we collaborate 
together to implement them or is it impossible?


Best regards,
Alex.

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Re: [sane-devel] What does basic support mean on the supported devices page for Plustek Opticbook 3600?

2018-04-09 Thread Olaf Meeuwissen
Hi Alex,

Alex ARNAUD writes:

> Hello all,
>
> I'm trying to help a visual-impaired person that wants to switch to
> GNU/Linux.
>
> He has a Plustek Opticbook 3600 and I found on this page:
> https://www.chiark.greenend.org.uk/doc/libsane/supported.html that the
> support of this device is noted as basic but honestly I don't understand
> what this mean.

The meaning of "basic" and other status classifiers are explained in the
Legend at the bottom of the page.  There's a link near the top, BTW.

> What does basic support for such device mean ?

  basic means it works at least in the most important modes but quality
  is not perfect.

> Is the page I've found correct to check if an hardware is compatible
> with Sane?

The page is not wrong but a bit out-of-date.  Have a look at

  https://sane-project.org/sane-backends.html

for the latest information.  FWIW, the support status of the scanner you
mentioned has *not* changed.

Hope this helps,
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[sane-devel] What does basic support mean on the supported devices page for Plustek Opticbook 3600?

2018-04-09 Thread Alex ARNAUD

Hello all,

I'm trying to help a visual-impaired person that wants to switch to 
GNU/Linux.


He has a Plustek Opticbook 3600 and I found on this page: 
https://www.chiark.greenend.org.uk/doc/libsane/supported.html that the 
support of this device is noted as basic but honestly I don't understand 
what this mean.


What does basic support for such device mean ?

Is the page I've found correct to check if an hardware is compatible 
with Sane?


Best regards.
--
Alex ARNAUD
Visual-Impairment Project Manager
Hypra - "Humanizing technology"

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