grolj4 is a driver for groff that produces output in PCL5 format suitable for an HP Laserjet 4 printer.
There is an additional drawing command available:
D'R dh dv'
Print n copies of each page.
Print the document with a landscape orientation.
Use duplex mode n: 1 is long-side binding; 2 is short-side binding; default is 1.
Set the paper size to size, which must be one of letter, legal, executive, a4, com10, monarch, c5, b5, dl.
Print the version number.
Set the default line thickness to n thousandths of an em.
Prepend directory dir/devlj4 to the search path for font and device description files.
The following four commands are available additionally in the DESC file:
The integer value N must be in the range -7 to +7; default is 0.
The integer value N must be in the range 0 to 32767; default is 0.
A boolean flag which can be either 0 or 1; default is 0.
Device description file.
Font description file for font F.