Xerox 6180N Using LCDS Print Description Language - Page 49

PDL principles and procedures Specifying VFUs The VFU (vertical format unit) command specifies the vertical tabbing for the print job. There can be more than one VFU identified. Each VFU command requires an identifier. All VFUs are typically specified at the beginning of the system level; for example: /* System level commands*/ VFU1: VFU ASSIGN=(1,11), ASSIGN=(12,66), TOF=11, BOF=66; VFU2: VFU ASSIGN=(1,(11,77)), ASSIGN=(12,(66,132)), TOF=11, BOF=132; VFU3: VFU ASSIGN=(1,1), TOF=1, BOF=132; Adding logical processing specifications Logical processing commands are invoked when the system locates satisfactory test criteria. These test criteria are set up for record fields and, if met, allow special processing to take place for such things as banner pages, record selection or deletion, page selection from auxiliary paper trays, and page offsetting. An example of logical processing tests and criteria is provided in this command set: T1: TABLE T2: TABLE T3 TABLE C1: TABLE C2: TABLE C3: TABLE CONSTANT=('PAGE 1'); CONSTANT=('INPUT RECORDS'); CONSTANT=('JOB'); CONSTANT=(122,6,EQ,T1), LINENUM=(1,10); CONSTANT=(14,13,EQ,T2); CONSTANT=(14,3,EQ,T3); These commands are often placed at the system level because they require identifiers. However, depending on how many of the jobs they apply to within the JSL, they could be coded at any of the other levels. Using LCDS Print Description Language 1-23