Command Structure; Control Codes; Commands; Index - Lexmark Printer User Manual

Command Structure

This section introduces the different types of PCL emulation commands and their
structure, or syntax. It also demonstrates how you can link commands to abbreviate
them.

Control Codes

Control Codes are single-character instructions.
Table 2-27: Control Codes
Code Dec Hex Function
BS 8 08 Backspace
HT 9 09 Horizontal Tab
LF 10 0A Line Feed
FF 12 0C Form Feed
CR 13 0D Carriage Return
SP 32 20 Space
SI 15 0F Primary Font
SO 14 0E Secondary Font

Commands

PCL commands are multibyte strings (also known as "escape sequences") that begin
with the Escape control code (
code notifies the printer that the characters that follow are to be interpreted as part of
a command and are not control codes or data to be printed.
Result
Moves the cursor toward the left margin one horizontal space equal to
the last printed character
Moves the cursor to the next defined tab stop
Advances the cursor to the same horizontal position on the following line
as determined by either the Vertical Motion Index (VMI) or Set Line
Spacing command
Advances the cursor to the same horizontal position at the top margin of
the next page
Moves the cursor to the left margin
Moves the cursor to the right one column
Selects the primary font
Selects the secondary font
ESC , , decimal 27, or hexadecimal 1B). The
2-59
PCL
ESC control