Xerox Nuvera 100 Додатковий посібник - Сторінка 23

Input processing from tape using Print Description Language

Tape Client Job Submission Guide

You use Xerox Job Description Compiler (XJDC) commands to

define parameters of tape jobs. Before selecting the PDL

commands that will describe a specific job tape, you need to

understand certain tape structure concepts. These concepts

enable you to define job tape characteristics such as host format,

block and record structure, tape translation code, packed data

formats, and so forth.

The printing system processes input tapes that are produced by

the standard host computers whose formats are supported by

the system (refer to "Supported tape formats," earlier in this

chapter). The HOST parameter of the VOLUME PDL command

enables you to select a specific input tape. The format of each

tape is described in the Xerox LPS Tape Formats Manual, which

is delivered with your printing system.

Tape codes that are recognized by the system are EBCDIC and

ASCII. If these codes are not sufficient for a particular tape, you

may create a new code translation table or modify (customize)

an existing code translation table. Tables that show the

correspondence between standard recording codes and printed

characters are in appendix C, "Character code assignment

tables," of the Guide to Using LCDS Print Description Language,

which is delivered with your DP EPS. Tape codes are selected

by the CODE parameter of the VOLUME PDL command.

All tape records input to the printing system are either blocked or

unblocked with a fixed length, a variable length, or an undefined

format. The BLOCK and RECORD commands define the format

of the input data. Tape label contents may also describe blocking

and record structure, and in some cases they override BLOCK

and RECORD commands that are specified in the JDL file.

These labels are described in this chapter and in the Xerox LPS

Tape Formats Manual, delivered with your DP EPS.

Tape Client overview

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