[sane-devel] Epson WF-7620 support

2017-12-23 Thread Michael Eager

Hi All --

I have a new Epson WF-7620 and SANE support is pretty good, at least 
once I figured out that I had to install sane-epkowa support.  I'm using 
gscan2pdf but I've also tried xsane and get the same results.


I have remaining problems with the ADF.

1 -- Scan position.  The scan bed is approx 12x18".  When feeding from 
the ADF, the feeder runs the paper through the middle of the scan ares, 
while the default flatbed scan is left aligned.  I can manually adjust 
the position of the image in the Geometry tab in gscan2pdf.  Is there 
any way to make this automatic, so that ADF scanning is centered for any 
size page?


2 -- Batch mode.  If I specify to scan all pages, only one sheet is 
processed.  If I give a number of pages, that number is scanned.



Any suggestions on addressing these issues?



--
Michael Eagerea...@eagerm.com
1960 Park Blvd., Palo Alto, CA 94306

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Re: [sane-devel] Reflecta DigiDia 5000 not found

2017-12-23 Thread Reinhard Kotucha
On 2017-12-22 at 08:25:45 +0100, Klaus Kaempf wrote:

 > Please run
 >   export SANE_DEBUG_PIEUSB=11
 > in a shell and then start xsane from there.
 > 
 > This should report the model number. Add it to pieusb.conf and you
 > should be all set.

Hi Klaus,
thank you very much!  Yes, it returns 

  [pieusb] model  ...: 0x002f

This is the same value as for the DigitDia 4000.

It works now but the scanner is not detected unless 'pieusb' is added
to dll.conf .

 > Please add 'GROUP="lp",' to this list to give you full access to the
 > usb device.

Done.  Can now run it as a mortal user.

The next problem to solve is to find a suitable ICM file for this
scanner.  Colors are still too dark and incorrect and I doubt that I
can determine the appropriate values manually.  I played with
Gamma/brightness/contrast but the colors are still wrong and I
therefore assume that these values have to be determined separately
for each color.

Iv'e got two DVDs, "CyberView X" and "Adobe Photoshop Elements 6".  On
the "CyberView X" DVD I found a file "Generic Positive.ft" but I fear
that the file format isn't understood be sane.  See an excerpt of this
file below.

How did you solve this problem?  Do you have an appropriate ICM file
for your Reflecta 6000?  I'm not sure whether what I bought is still
complete.

Another thing I have not found out yet is how to make use the slide
transport supported by the scanner.  When I set SANE_DEBUG_PIEUSB=13
and activate "Advance slide", I see

  [pieusb] set advcane [#10] to 1

(there is a typo BTW, s/advcane/advance/) but the same slide is
scanned again when I acquire a new preview.  I have abt. 7200 slides
and I hope that I can digitize them without too much manual surgery.

The new format of pieusb.conf is

  # usb

When I set  to 0x01, xsane complains about
IO-errors[1].  On the other hand we have

 # Autodetect (built-in)
 # Reflecta DigitDia 6000 Multiple Slide Scanner
 # usb 0x05e3 0x0142 0x3a 0x01
  
So I assume that 0x01 should be the correct value for my scanner too.

Thanks again and Merry Xmas,
  Reinhard


[1] "Io, the Greek goddess of input and output"
Donald E. Knuth, The METAFONTbook


File "GAMMA/Generic Positive.ft"
--
# Version 1.4;
# Film term file for all reversal film;
# Created using Q60 unit;
# Film term created by B. Lin;

FilmClass   REV;
FilmMfgrGeneric;
FilmNameGeneric Positive;
FilmLevel   4   4   4;
CreationDate07102003;
FilmBalance 140 140 140;
FilmLut 
0.000.000.00 
7.507.506.00 
15.06   15.11   12.20 
22.67   22.83   18.60 
30.33   30.67   25.20 
38.06   38.61   32.00 
[...lines omitted...]
4093.22 4093.18 4093.85 
4094.11 4094.09 4094.43 
4095.00 4095.00 4095.00;
FilmMatR1.4234   -0.32300.0061   -29.7088;
FilmMatG0.06000.96770.0719   -31.3147;
FilmMatB0.1562   -0.51041.4530   -28.9059;
--

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--
Reinhard KotuchaPhone: +49-511-3373112
Marschnerstr. 25
D-30167 Hannovermailto:reinhard.kotu...@web.de
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