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- Here are the two versions of the program that converts CAT output to a format
- suitable for the Hewlet-Packard DeskJet family of printers.
-
- This program relies heavily on previous work done by
- ihnp4!mnetor!clewis (Chris Lewis), published in the 3rd volume of
- comp.sources.unix. For this reason some of the
- files carry the copyright of the original author. The rest
- have the GNU copyleft applied to them.
-
- Special thanks are due to Hewlett-Packard for all the information
- about the DeskJet and its font format that they sent to me.
-
- Now a few words about the programs in this distribution:
-
- The first version (lcat) uses the DeskJet graphics mode to send the
- document to the printer, while the other one (vcat) creates soft fonts
- and downloads them accordingly. The lcat program gives you a choice of
- two resolutions (300 dpi and 150 dpi). The low res mode is really good
- only for drafts but is so much faster that its worth having.
-
- Here are the times for the execution of the two programs
-
- (the mode button is that little button you have on the DeskJet control
- panel. If the LED is on then you are in DRAFT mode, otherwise you are
- in LQ mode)
-
- Program Resolution Mode Button Time (minutes.seconds)
- lcat hires LQ 2.54
- lores DRAFT 1.01
- vcat
- (empty cache) N/A LQ 1.48
- (empty cache) N/A DRAFT 1.40
-
- (full cache) N/A LQ 0.53
- (full cache) N/A DRAFT 0.45
-
- The times are from the time the RETURN key is pressed till the paper is
- ejected by the printer. Note though that while lcat ties up the
- computer the whole time, vcat terminates before the DeskJet finishes
- printing. This is due to the fact that the DeskJet buffer can hold
- quite a few characters, but only one line of graphics data.
-
- TODO:
- The font cache management needs a lot of work. It should
- at least check the size of the downloaded fonts and use
- that to determine which fonts have to go.
-
- The ligature code works only on lcat. If your font doesn't
- have ligatures and you want to use vcat, then be sure to
- tell troff not to use ligatures (.lg 0). Note that by default
- troff assumes that you do want ligatures.
-
- Bug fixes, comments etc. to:
- Vasilis Prevelakis
- Centre Universitaire d'Informatique (CUI)
- 12 Rue du Lac, Geneva, Switzerland CH-1207
- email: vp@cui.unige.ch
- uucp: ...!mcsun!cui!vp
-
-