PRINT DESCRIPTION LANGUAGE (PDL)
2-10 XEROX DOCUPRINT 180 LPS PDL REFERENCE
Job source library (JSL) structure
To simplify JSL coding, PDL commands are grouped into command
levels. The use and syntax of command level s, along with the
required END command, are defined in the following sections:
•ID level
•System level
•Catalog level
•Job or JDL level
•END command
The command levels are always preceded by the JDL coding, which
provides the name of the compiled JDL.

Command levels

You can place PDL commands in any comma nd level, depending on
your particular application needs.
Table 2-3 outlines the command levels and som e typical
specifications that are included in these various levels.
Table 2-3. Command levels and their gen eral pur pos e
Command
level General purpose
ID Typically used to assign output channel numbers
to printer carriage control channels through the
VFU command, but any command which has an
identifier may be used at the ID level, such as the
CODE, PCC, and ROUTE commands.
System or JDL Establishes installation defaults.
Catalog Groups PDL commands for easy reference at the
job level.
Job or JDE Defines how individual print jobs are processed.