94 lines
3.8 KiB
HTML
94 lines
3.8 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta content="text/html; charset=ISO-8859-1"
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http-equiv="content-type">
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<title>HP PXL Jetready Project FAQ</title>
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</head>
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<body>
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<a href="http://sourceforge.net"><img src="http://sourceforge.net/sflogo.php?group_id=123386&type=7" width="210" height="62" border="0"
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alt="SourceForge.net Logo" /></a>
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<ul>
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<li>What is this?</li>
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</ul>
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<div style="margin-left: 40px;">PXLJR (<a
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href="http://sourceforge.net/projects/hp-pxl-jetready/">http://sourceforge.net/projects/hp-pxl-jetready/</a>)
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is an IJS-based driver for the HP
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JetReady 4.x protocol printer family (Color Laserjet
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3500 and 3550) under linux and other unix-like systems. This effort is
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not endorsed by nor affiliated with HP.<br>
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<br>
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It is licensed under the terms of GNU General Public License.<br>
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</div>
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<ul>
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<li>Compiling and Run-time requirements?</li>
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</ul>
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<div style="margin-left: 40px;">About the same as HPIJS. PXLJR needs a
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C compiler rather than a C++ compiler, and also need
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automake/autoconf (this may be improved in later release). <br>
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</div>
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<ul>
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<li>HPIJS/HPLIP also supports these two printers. Why are you
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"reinventing the wheel"?</li>
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</ul>
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<div style="margin-left: 40px;">HPIJS (<a
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href="http://hpinkjet.sourceforge.net">http://hpinkjet.sourceforge.net</a>)
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provides 2 printing modes: one color and one gray, corresponding to the
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max-compression/worst-quality setting of the HP driver under Windows.
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There are two more settings for better quality in the Windows driver.
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PXLJR provides these two additional settings, so there are a total of 6
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printing modes. Also, the max-compression gray mode of PXLJR is 1.5 to 3
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times faster.<br>
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<br>
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One the other hand, PXLJR doesn't provide a full set of facilities like
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printer status report, etc. For other bells and whistles, please use
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HPLIP's toolbox instead. There is no conflict installing both HPIJS and
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PXLJR simultaneously.<br>
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</div>
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<ul>
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<li>Why did you not improve HPIJS instead?</li>
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</ul>
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<div style="margin-left: 40px;">There are professional reasons that I
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need to maintain autonomy; on the other hand, the two addtional quality
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settings are already in the Windows driver. The HPIJS people can
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consult their Windows driver people and there is no need for me to
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contribute; the other improvement - the speed for the gray modes -
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would require substantial modification, and affects and changes code paths
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that I cannot test due to not have the other printers.<br>
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</div>
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<ul>
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<li>Any other improvement I can do to my prints?</li>
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</ul>
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<div style="margin-left: 40px;">There is a file 'gs-gamma.ps' which
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changes the gamma curve and boasts the shadow details if one
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prepends it to a print-job.<br>
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</div>
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<ul>
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<li>Known problems, Limitations?</li>
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</ul>
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<div style="margin-left: 40px;">The right-hand border for PXLJR is
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about 0.5mm wider than HPIJS. I haven not been able to track it down,
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but the difference is only noticeable if one prints all the way to the
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edge of the printerable area, and compare side-by-side.<br>
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<br>
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Standard page size (A4, letter, envelope, etc) works, but custom
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arbitrary size only works on 32-bit small endian. (i.e. x86). HPIJS has
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a similiar and worse problem - and both will be resolved in the
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corresponding next releases.<br>
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"make install" installs too many unnecessary things, and does not
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install the ppd. Only really only need<br>
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to copy the ijs_pxljr into /usr/bin and the ppd into a CUPS specific
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place. <br>
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</div>
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<ul>
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<li>Upcoming improvements?</li>
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</ul>
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<div style="margin-left: 40px;">Making dependence on libjpeg optional.<br>
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Make Multiple-copies option work. Currently if one wants X identical
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copies, one needs to send job X times.<br>
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Make the gamme curve change a more user-friendly option.<br>
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See if a 1-bit B/W version can go even faster.<br>
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</div>
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</body>
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</html>
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