Summary Of Vfu Command Parameters - Oce XDL Reference Manual

Summary of VFU Command Parameters

3.12 Summary of VFU Command Parameters
The VFU command is used to assign output line numbers to printer carriage control chan-
nels. These line-to-channel assignments perform the same function as the printer carriage
control tape on a conventional line printer. The VFU command is also used to assign line
numbers to the top of form and the bottom of form. Top of form indicates the number of lines
from the top (as defined by the PDE BEGIN values) of an output page to the first print line
on the page. TOF defines the first line on which printing appears. Bottom of form indicates
the number of lines from the top of an output page to the last print line on the page. BOF
defines the last line on which printing appears.
Top and bottom of form are used for prejob page alignment and for page overflow process-
ing. For all PCCTYPEs except ANSI and user-defined PCCs, the prejob page alignment is
to top of form in the expectation that the first carriage control parameter of the job will be
print and space one line, or something similar. Selection of ANSI causes alignment to bot-
tom of form to handle the skip-to-channel-1-and-print parameter, which usually begins a job
of that carriage control type. User-defined PCCs may set alignment at either TOF or BOF.
Page overflow occurs when spacing to the next line causes the bottom-of-form line number
to be exceeded. Page transition occurs, and line spacing is continued from the top-of-form
line number. Honeywell 2000 carriage control and carriage control are exceptions to this
processing.
You must specify an identifier of the type ac when defining the VFU table and reference it
in the VFU parameter of the LINE command. The VFU command must precede the LINE
command. A command identifier of the type ac may consist of one-to-six alphanumberic
characters (A-Z and 0-9). One of the characters must be alpha.
ASSIGN
BOF
TOF
128
This parameter specifies the output line-to-channel assignments.
This parameter specifies the last line to print.
This parameter specifies the first line to print.
Print Processing
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