HP PCL/PJL reference - Printer Job Language Technical Reference Manual
3-6 Using PJL EN
Command Groupings by Functionality
This manual categorizes the PJL commands into related groups. 
Each group of commands is covered in a separate chapter, as 
indicated in the following table. This table lists each command and 
gives a short description of each.
Command Group Command Command Description 
Kernel Commands
(Chapter 4)
Universal Exit Language 
(UEL)
Exits current printer 
language and returns 
control to PJL. 
COMMENT Causes PJL to accept the 
command line as a 
comment.
ENTER Selects a printer language 
for processing the current 
job.
Job Separation Commands
(Chapter 5)
JOB Informs printer of the start 
of a print job, resets the 
page count, allows naming 
of the job, supports 
non-printing mode for 
printing portions of jobs. 
Where supported, it adds 
PJL password security.
EOJ Tells printer the print job is 
complete, resets the page 
count.
Environment Commands
(Chapter 6)
DEFAULT Sets default value for 
environment variables.
SET Sets an environment 
variable to a specified value 
for the duration of 
a PJL job.
INITIALIZE Resets current and default 
PJL variables to factory 
default values.
RESET Resets current PJL 
variables to default values.










