Tape Client overviewTape Client Job Submission Guide 1-7Input processing from tape using Print Description LanguageYou use Xerox Job Description Compiler (XJDC) commands todefine parameters of tape jobs. Before selecting the PDLcommands that will describe a specific job tape, you need tounderstand certain tape structure concepts. These conceptsenable you to define job tape characteristics such as host format,block and record structure, tape translation code, packed dataformats, and so forth.Host computer tape formatsThe printing system processes input tapes that are produced bythe standard host computers whose formats are supported bythe system (refer to “Supported tape formats,” earlier in thischapter). The HOST parameter of the VOLUME PDL commandenables you to select a specific input tape. The format of eachtape is described in the Xerox LPS Tape Formats Manual, whichis delivered with your printing system.Tape codesTape codes that are recognized by the system are EBCDIC andASCII. If these codes are not sufficient for a particular tape, youmay create a new code translation table or modify (customize)an existing code translation table. Tables that show thecorrespondence between standard recording codes and printedcharacters are in appendix C, “Character code assignmenttables,” of the Guide to Using LCDS Print Description Language,which is delivered with your DP EPS. Tape codes are selectedby the CODE parameter of the VOLUME PDL command.Record formatsAll tape records input to the printing system are either blocked orunblocked with a fixed length, a variable length, or an undefinedformat. The BLOCK and RECORD commands define the formatof the input data. Tape label contents may also describe blockingand record structure, and in some cases they override BLOCKand RECORD commands that are specified in the JDL file.These labels are described in this chapter and in the Xerox LPSTape Formats Manual, delivered with your DP EPS.