System Administration Guide: Printing  Managing Printer-Resident
Fonts  Most PostScript printers come equipped with fonts that
are resident in the printer ROM. Some printers have a disk on
which additional fonts are stored. When a printer is installed,
you should add the list of printer-resident fonts to the font
list for that printer. By identifying printer-resident fonts,
you prevent fonts from being transmitted unnecessarily across a
network. Each printer has its own list of resident fonts, which
is contained in this file:   When the printer is attached to a
print server, ensure that the list in the residentfonts file
includes fonts that are on the print server. The file must also
include fonts that are available for downloading to the printer.
You must edit the files that contain the list of printer-
resident fonts by using a text editor such as vi.