User`s guide

However, the QMS-PS 410 printer has ESP, the unique ability to
recognize different printer command languages without user
intervention. All you do is send the file from a popular commercial
application to the printer. You do not have to make any adjustments
to either the printer or the file.
Data
From
Computer
ESP
(Emulation Sensing Processor)
PostScript
Language
HP PCL
Language
HP-GL
Language
PostScript
File
HP-GL
Graph
HP PCL
File
(Optional)
Fig. 3.1
Chapter 3
3-2 Selecting Printer Languages