Xerox 6100BD - Phaser Color Laser Printer Software Manual page 49

Specifying VFUs
Adding logical
processing
specifications
Using LCDS Print Description Language
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;
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
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.
PDL principles and procedures
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);
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