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Chapter 2 Configuring The ANSI Emulation
Forms Length, Top Margin, Bottom Margin
ASCII Code ESC [p1;p2;p3 r
Hex Code 1B 5B p1 3B p2 3B p3 72
Dec Code 27 91 p1 59 p2 59 p3 114
Expression CHR$(27); “[p1;p2;p3r”;
Purpose Defines the form.
p1 = Form length (in decipoints). Maximum allowable length is
22 inches (15,840 decipoints)
p2 = Top margin from top of page. Top of page to first print line.
p3 = Bottom margin from end of page. The last print line to
bottom of page.
The default parameters are for a 12 inch long form with a top
margin of zero and a bottom margin of zero.
Discussion The printer keeps track of these vertical positions to the nearest
half point (5 decipoints).
1 decipoint = 1/720 inch
1 point = 10 decipoints (10/720 inch)
1/2 point = 5 decipoints (5/720 inch)
Examples
ESC [r default values of 12 inch form length, zero top and bottom
margins
ESC [8280r 11.5 inch form length, default top and bottom margins of zero
ESC [;720r default length of 12 inches, top margin of one inch, default
bottom margin of zero
ESC [;;720r default length of 12 inches, default top margin of zero and a one-
inch bottom margin
ESC [7920;360;360r
11 inch form length, 1/2 inch top and bottom margins