Oce XDL, Reference Manual

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Xerox Print Description Language (XDL) Overview
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1.6 Xerox Print Description Language (XDL)
This chapter discusses the following XDL topics used to create and control print jobs.
• Purpose of XDL
• XDL command structure
• JSL structure
• Hierarchy of replacement
1.6.1 Purpose of XDL
For a job to be printed on a LCDS-Module, it is necessary to create a file of XDL commands
to define the format of the input media, processing requirements, and the format of the print-
ed output. The source or uncompiled file of XDL commands is referred to as a job source
library (JSL) file. All JSL files must be compiled before they can be referenced to print a job.
The object or compiled file is stored as a internal Print parameter description in the System
catalog. To select this Job Description Library use the ’JDL Name’ and ’JDE-Name’ fields
on the ’General’ tab in the PJM ’File properties’ window for LCDS data print files.
Each command has a set of parameters that can be used to define the characteristics of a
print job (input-, output- and logical- processing). XDL commands used in creating a JSL
may be entered at the LCDS-Module Editor.
1.6.2 XDL command structure
The primary element of a JSL is a job. It usually defines one input format, one set of pro-
cessing instructions, and one set of output instructions. Each job has a user-defined name
that you invoke to run the job.
To produce a finished job or application, a JSL must be created and then compiled into a
JDL file. To accomplish this, you must use XDL commands and be knowledgeable about
XDL structure, which includes the following topics:
• Command components
• Right-part constants
Command components
The components of an XDL command are:
• Command identifier, if required