User's Manual Part 2

Chapter 5 — Control Code Definitions
6822 Series 80-Column Printer User’s Manual 65
Select Unidirectional (one line) Printing
Turns on unidirectional printing for the current line only. The contents of
the print buffer is printed, and cleared before setting this mode. This
allows more accurate print positioning during text mode printing, for the
current line.
Page Formatting Functions
This set of functions consists of control codes that change the formatting
of the page. The page length (form length) and margin settings define the
printable area on the page. These settings need to conform to the actual
size of the paper used in the printer. The line spacing functions set the
amount of space from one line to the next, for line feeds. The factory
default is 1/6 inch (6 lines per inch). The page length, vertical tab, and
skip over perforation functions are also dependent on the line spacing
function.
Set Page Length (lines)
Sets the length of the paper in lines, where the range of n (number of
lines) is 1-127 (default = 66). Keep in mind the line spacing and actual
length of the paper when specifying this value, since this function is
dependent on those parameters. Top-of-Form is reset to the current line
and the Skip Over Perforation setting is canceled.
Format
Decimal Hex ASCII
27 60 1B 3C ESC “<”
Format
Decimal Hex ASCII
27 67 n 1B 43 n ESC “C” n