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Quality and geometry on 6110MFP
Posted by: noddy ()
Date: October 21, 2008 01:04PM

Just a note as a newbie who has just been given a Phaser 6110MFP.

With foomatic and foo2qpdl and using CUPS printer test pages, the output
is a little too large for the printing area. So presumably the foomatic ppd has the printing area set too large.

Using the ph6110.ppd from the Xerox package and the filter rastertosamsungpcl
gave significantly better quality and geometry (bounds).

The tests above were using gs-esp version 8.15.3. I don't know whether the quality
issue is related to that version of gs. I haven't tried anything else as yet.

ph6110.ppd has no copyright mentioned in the file itself and is freely available
from the Xerox site, so perhaps it is possible to take the imaging area from there.

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Re: Quality and geometry on 6110MFP
Posted by: rickrich ()
Date: October 21, 2008 04:47PM

Check with a ruler!

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Re: Quality and geometry on 6110MFP
Posted by: rickrich ()
Date: October 21, 2008 05:00PM

From the INSTALL file:
GHOSTSCRIPT BUGS
----------------
    * Well Tempered Screening (WTS) works with ghostscript 8.54 thru 8.62+.
      So if you want BEST COLORS, you'll have to install gs 8.54 or better
      if you don't have it.

        $ gs --version
        8.15.2

        $ wget "http://mirror.cs.wisc.edu/pub/mirrors/ghost/GPL/gs862/ghostscript-8.62.tar.gz";
        $ tar zxf ghostscript-8.62.tar.gz
        $ cd ghostscript-8.62
        $ ./autogen.sh
        $ make
        $ su                            OR $ sudo cp bin/gs /usr/bin/gs.foo
        # cp bin/gs /usr/bin/gs.foo

        (Optional)
        # make install                  OR $ sudo make install

        $ gs.foo --version
        8.62


    * Ghostscript before 8.55 has a problem with ICM files and 64-bit gcc.
      It causes a segfault with km2430_2.icm. So don't select that one.

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Re: Quality and geometry on 6110MFP
Posted by: noddy ()
Date: October 22, 2008 04:18PM

rickrich Wrote:
-------------------------------------------------------
> Check with a ruler!

Done that. Both have scaled accurately.

The difference is in the Page Size, Lower-Left and Upper-Right (CUPS testpage
terminology). foomatic sets Page size to official A4 (210mm * 297) and places
the LL and UR on the edges of the sheet.

The Xerox version has margins: Page Size at 201.1 * 288.2mm with LL at 4.4 * 4.4mm
etc. From the test page, it seems that the 6110 engine can't print the full area of an A4 sheet.

My knowledge of PPD has faded over the more than 15 years since I last looked at it, and I don't have a reference to hand :-(

I guess this is not a foo2qdpl issue anyway, and I should look into the foomatic data base when I have time. But this seemed a relevant place to comment.

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Re: Quality and geometry on 6110MFP
Posted by: noddy ()
Date: October 22, 2008 04:21PM

rickrich Wrote:
-------------------------------------------------------
> From the INSTALL file:
>
> GHOSTSCRIPT BUGS
> ----------------
> * Well Tempered Screening (WTS) works with
> ghostscript 8.54 thru 8.62+.

Saw that. hence my comment that I wasn't sure whether the gs-esp version might be the problem.

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