HP Color LaserJet 5500 Technical Reference Manual page 86

Variables
FONTNUMBER
(continued)
6-24 Environment Commands
PCL-Specific Variables
Description
If the value of the FONTSOURCE changes,
then the FONTNUMBER variable
automatically is changed to the lowest
numbered font in the new font source (0 if the
new font source contains a default-marked
font; 1 if it does not). If the SYMSET variable
changes, the FONTSOURCE and
FONTNUMBER default to the highest priority
default-marked font (lowest numbered font).
When the printer searches for the highest
priority default-marked font, cartridges have
the highest priority, then SIMMs, then internal
default-marked fonts (downloaded soft fonts
have the highest priority, but there cannot be a
default-marked soft font). NOTE: the
recommended order for setting FONT-
NUMBER, FONTSOURCE, and SYMSET is
SYMSET first, then FONTSOURCE, then
FONTNUMBER.
Also, if the currently set font source is S while
the currently set font number is the highest-
numbered soft font, and a soft font is deleted,
the FONTSOURCE variable is changed to the
next highest priority font source containing a
default-marked font. The FONTNUMBER
variable is tied to both the FONTSOURCE and
SYMSET variables.
Sample Value Range
0, 1, 2, . . . n