Tape Client overview
Input processing from tape using Print Description Language
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.
Host computer tape formats
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
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.
Record formats
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 Job Submission Guide |