HP PCL/PJL reference (PCL 5 Printer Language) - Technical Reference Manual Part II

EN SD, Standard Font Definition 23-73
Example:Using the SD Command
The following example shows the SD command used to designate a
25-point Univers Bold font in the ASCII symbol set (use the Select
Standard Font (SS) command to select this font after it is designated):
Note that the pitch parameter is missing in the above command
because the designated font is proportionally spaced.
Table 23-45
Related Commands Group
AD, Alternate Font Definition The Character Group
DT, Define Label Terminator
FI, Select Primary Font
FN, Select Secondary Font
LB, Label
SA, Select Alternate Font
SI, Absolute Character Size
SR, Relative Character Size
SS, Select Standard Font