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- DJF is a filter for printing from a NeXT computer onto US letter-size
- paper using a Hewlett-Packard DeskJet printer. It relies heavily on
- codd from Eric P. Scott's program IWF, which drives the Apple
- ImageWriter II. Bitmaps are compressed using a routine from GhostScript.
-
- When printing PostScript files, DJF is capable of driving the DeskJet
- at all 4 of its bitmap resolutions: 75, 100, 150, or 300 dpi,
- selected by the -R switch. At lower resolutions, printer time
- dominates; at higher resolution, bitmap transmission time dominates.
- Use the DeskJet's keypad to select draft or letter quality printing.
- Draft printing at 100dpi is legible and reasonably fast; high-quality
- printing at 300dpi is slower but gives superb results. DJF has been
- tested on the original HP DeskJet.
-
- Unfortunately, I don't have a NeXT, so I can't provide detailed
- installation instructions. I don't even know if the NeXT printing
- software will pass the -R switch to an input filter to select the
- printer resolution properly. Note that the FAQ (frequently-asked-
- questions) file contains some information on cables for HP printers.
-
- I don't have the time to support this program, but several recent
- messages have indicated that others may find it useful. Suggestions
- and bug reports to beatty+@cs.cmu.edu will be saved, just in case I
- find time to respond. Also, please do not send Eric P. Scott reports
- of bugs in code that I wrote!
-
- File Contents
- ---- --------
- COPYING Free Software Foundation copying and license information.
- Makefile Compilation rules.
- Readme The discription you are reading now.
- compress.c Code for PCL mode 2 bitmap compression, from Ghostscript 2.2.
- diffs Differences between this code and Eric P. Scott's program, IWF.
- djf Precompiled binary, for trusting souls.
- djf.8 Manual page, edited from Eric P. Scott's "iwf.8" manual page.
- djf.c Code for filter.
- djwraps.psw Code for interface to Display PostScript.
-
- This code may be redistributed according to the restrictions placed
- upon it by 1) Eric P. Scott, in the copyright notice appearing in the
- file "djf.c," and by 2) the Free Software Foundation, in the notice
- appearing in the file "COPYING."
-
- -- Derek Beatty
- student, CMU SCS PhD program
-