32 Line Matrix Printer LinePrinter Plus Programmer's Reference

Chapter 3 Configuring the Proprinter III XL Emulation with Control Codes

Configuring the Proprinter III XL Emulation with Control

Codes

The remainder of this chapter describes the Proprinter printer control

language codes that may be sent from a host computer attached to the

printer, in order to configure numerous Proprinter III XL emulation

parameters.

Format for Control Code Descriptions

In this chapter, the following information is listed for each control code (where

applicable):

Name The title or function of the command.

ASCII Code The ASCII mnemonic for the command is shown. Command

sequences are in 7-bit (ASCII) form.

Hex Code The code or command sequence in hexadecimal numbers.

Dec Code The code or command sequence in decimal numbers.

Purpose The function(s) of the control code.

Discussion A discussion of the uses of the code or command sequence,

including exceptions or limitations to its use.

Example A sample is provided when it is possible to illustrate the effect of

a control code or if a specific syntax is required.

NOTE: If you specify any parameters for a control code other than the ones

that are defined in the control code description, unpredictable results

may occur. The PI line is never recognized in Proprinter III XL

Emulation mode.

Escape Control Codes Overview

Printer capability is greatly increased by the use of escape control code

sequences. Escape sequences always begin with the ASCII escape

sequence introducer, ESC (hex 1B). Many of the ASCII control codes

described in this chapter are escape sequences.

IMPORTANT

An Escape code can occur anywhere in the datastream and is acted

upon immediately if it precedes a valid command.

An ESC sequence introducer in the data stream signals the printer to wait for

special instructions, even if it is ready and printing. The character codes

following the ESC character tell the printer what to do.

NOTE: For readability, code sequences appear in this manual with spaces

inserted between command elements. Do not insert spaces between

code characters when you are programming unless the ASCII space

character (SP) is part of a code sequence. For example, a code

sequence printed in this manual as ESC [ 1 is programmed as ESC[1.