Asynchronous Terminals and Printer Processes Programming Manual

PRINTER PROGRAMMING CONSIDERATIONS
Loading the DAVFU
Line 63 is defined as bottom of paper when the default DAVFU is
used. If the paper is properly aligned in the printer, line 63
is the last line before the perforation and lines 64, 65, and 66
are the first three lines on the new page. Line 1 (top of form)
immediately follows as the fourth line on the page.
Follow this procedure for using nonstandard paper:
1. Call CONTROLBUF 1 to load the DAVFU.
2. Request manual intervention to load the printer with the
desired paper and align it properly.
3. Start writing to the printer.
4. When reloading the printer with standard 66-line paper after
nonstandard paper has been loaded, turn the printer off and
then back on again to reset the form length to the default
setting.
Example
The following example illustrates program code to load the DAVFU.
The channel stops specified in the example are the same as those
in the default DAVFU.
INT .VFUBUF[ 0:65 ] :=
[%137740, %020000, %030000, %024000, %030000, %020000,
%034000, %020000, %030000, %024000, %030400, %020000,
%034000, %020000, %030000, %025000, %030000, %020000,
%034000, %020000, %030400, %024000, %030000, %020000,
%034000, %020000, %030000, %024000, %030000, %020000,
%037400, %020000, %030000, %024000, %030000, %020000,
%034000, %020000, %030000, %024000, %030400, %020000,
%034000, %020000, %030000, %025000, %030000, %020000,
%034000, %020000, %030400, %024000, %030000, %020000,
%034000, %020000, %030000, %024000, %030000, %060000,
%000000, %000000, %000020, %000000, %000000, %000000];
.
.
CALL CONTROLBUF ( FILENUM, 1, VFUBUF, 132 );
Condensed and Expanded Print
The model 5520 printer provides condensed and expanded print in
addition to the standard spacing of 10 characters per inch.
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