q Current PostScript software revision number
Indicates the current number of the software revision.
w Interface configuration
Shows the current settings for the parallel interface.
e Total RAM and ROM
The amount of total RAM and ROM available, including the 4 MB of standard
on-board RAM supplied.
r Printing environment
Lists the important features of the printing environment and their current settings.
t Name of fonts available
Lists the names of the fonts available for printing.
Setting PostScript Printing Options