Xerox DocuPrint 180, Product Manual

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XEROX DOCUPRINT 180 LPS SOFTWARE COMPONENTS
4-4 XEROX DOCUPRINT 180 LASER PRINTING SYSTEM PRODUCT GUIDE
Editor task The Editor task creates and modifies disk files. When you save a
work file, it stores the contents permanently on the disk. It sends files
to print; sends FSL and JSL files to be compiled; directs CMD files to
execute; and manipulates temporary (TMP), miscellaneous (MSC),
patch (PCH), and data (DAT) files.
Font Editor task The Font Editor task creates and modifies font files. The font files are
stored permanently on the disk when you save them.
Input task The input task reads in print job data, creates a job control block file,
and delivers job messages to the operator. Then the input task
unpacks and converts the data; selects and deletes blocks or
records; records any special processing instructions (for page
offsets, DJDE records, CMEs); and records the disk addresses of the
font, form, and image files used for the job. The result is a page
buffer, consisting of the variable data and print instructions for the
page, and the page log, consisting of tracking information used to
process the page.
Dynamic job descriptor task The DJD task compiles the Dynamic Job Descriptor Entries (DJDE’s)
in the job stream. (The DJDE’s give the printer instructions for
printing based on the result of true/false tests of the data in the job
stream).
Output task The output task uses the page logs written by the input task to load
fonts in the font memory and variable data in the AIS. It causes paper
to feed from the indicated tray and manages report integrity with
multiple checks. In addition, Output manages delivery of the printed
pages to the correct bins and performs page recovery if necessary.
Print description language compiler The PDL task loads the PDL compiler and looks in the JSL library for
the file to be compiled. Then it analyzes the JSL statements and
creates the object module (the JDL file).
Forms description language compiler The FDL task loads the FDL compiler and looks in the FSL library for
the file to be compiled. Then it analyzes the FSL statements and
creates the object module (the FRM file).
Host interface processor task The HIP task controls DocuPrint 180 LPS communications with an
online host.
Report (RPT) task Works in connection with the Input task.