This GNU roff output driver translates the output of troff(1) into a CaPSL and VDM format suitable for
Canon LBP-4 and LBP-8 printers. Normally, grolbp is invoked by groff(1) when the latter is given the
“-Tlbp” option. (In this installation, ps is the default output device.) Use groff's -P option to pass
any options shown above to grolbp. If no file arguments are given, or if file is “-”, grolbp reads the
standard input stream. Output is written to the standard output stream.
Typefaces
The driver supports the Dutch, Swiss, and Swiss-Narrow scalable typefaces, each in the regular, bold,
italic, and bold-italic styles. Additionally, the bitmapped, monospaced Courier and Elite typefaces are
available in regular, bold, and italic styles; Courier at 8 and 12 points, Elite at 8 and 10 points. The
following chart summarizes the groff font names used to access them.
┌───────────────┬─────────┬────────┬──────────┬──────────────┐
│ Typeface │ Roman │ Bold │ Italic │ Bold-Italic │
├───────────────┼─────────┼────────┼──────────┼──────────────┤
│ Dutch │ TR │ TB │ TI │ TBI │
├───────────────┼─────────┼────────┼──────────┼──────────────┤
│ Swiss │ HR │ HB │ HI │ HBI │
├───────────────┼─────────┼────────┼──────────┼──────────────┤
│ Swiss Narrow │ HNR │ HNB │ HNI │ HNBI │
├───────────────┼─────────┼────────┼──────────┼──────────────┤
│ Courier │ CR │ CB │ CI │ │
├───────────────┼─────────┼────────┼──────────┼──────────────┤
│ Elite │ ER │ EB │ EI │ │
└───────────────┴─────────┴────────┴──────────┴──────────────┘
Paperformat,orientation,anddevicedescriptionfilegrolbp supports paper formats “A4”, “letter”, “legal”, and “executive”. These are matched case-
insensitively. The -p, --papersize option overrides any setting in the device description file DESC. If
neither specifies a paper format, A4 is assumed.
In its DESC file, grolbp (case-insensitively) recognizes an orientation directive accepting one mandatory
argument, portrait or landscape. The first valid orientation directive encountered controls. The -l,
-o, and --orientation command-line options override any setting in DESC. If none of the foregoing
specify the orientation, portrait is assumed.
Fontdescriptionfiles
In addition to the font description file directives documented in groff_font(5), grolbp recognizes
lbpname, which maps the groff font name to the font name used internally by the printer. Its syntax is
as follows.
lbpname printer-font-namelbpname's argument is case-sensitive. The printer's font names are encoded as follows.
For bitmapped fonts, printer-font_name has the form
N⟨base-font-name⟩⟨font-style⟩
base-font-name is the font name as it appears in the printer's font listings without the first letter, up
to (but not including) the font size. font-style can be one of the letters R, I, or B, indicating the
roman, italic, and bold styles, respectively. For instance, if the printer's “font listing A” shows
“Nelite12I.ISO_USA”, the corresponding entry in the groff font description file is
lbpname NeliteI
You may need to modify grolbp to add support for new bitmapped fonts, since the available font names and
font sizes of bitmapped fonts (as documented above) are hard-coded into the program.
For scalable fonts, printer-font-name is identical to the font name as it appears in the printer's “font
listing A”. For instance, to select the “Swiss” font in bold-italic style, which appears in the font
listing as “Swiss-BoldOblique”,
lbpname Swiss-BoldOblique
is the required directive, and this is what we find in the groff font description file HBI for the lbp
device.
Drawingcommands
For compatibility with grolj4(1), an additional drawing command is available.
\D'Rdhdv'
Draw a rule (solid black rectangle) with one corner at the drawing position, and the diagonally
opposite corner at the drawing position +(dh,dv).
Install Now
PNG Icons
