Printronix P6000L, User'S Reference Manual

Page: 158 / 234

Programming 6-58
Vertical Tab Set (Serial Matrix)
P-SERIES SERIAL MATRIX
ASCII Code : N/A ESC B n
Hex Code : N/A 1B 42 n
Purpose : Sets vertical tab positions.
Expression : CHR$(27);
”
B
”
;CHRS(n);...CHR$(nk);CHR$(0);
where : n1 through nk specify the line number for the vertical tab(s),
for a maximum of 16 tab positions. CHR$(0) is the sequence terminator.
Comment : The physical position on the paper is the product of n" and the current line
spacing. Subsequent line spacing changes do not change the tab position. If
the value of n" defines a tab stop that exceeds the forms length, that tab posiĆ
tion is ignored.
In the Serial Matrix mode, vertical tab positions are set by control code ESC B
and executed by control code VT. The tab positions must be in ascending orĆ
der or the sequence will terminate. More information regarding Serial Matrix
vertical tab setting is provided in the Vertical Format Units chapter.
Example: The following sample program illustrates Vertical Tab setting and accessing.