User guide

General Information About the LA75 Plus Companion Printer
1.1 Description of the LA75 Plus Companion Printer
• Can be connected simultaneously to serial and parallel ports, and switches
automatically between them when data is received.
• Is compatible with the IBM Proprinter X24E, which is the default protocol
at power-up when the parallel port is used.
Refer to the LA75 Plus Companion Printer Installation and User Guide for
information about installing and using the LA75 Plus Companion Printer.
1.2 DEC PPL2 Extensions and Exceptions
Note
References are made in this manual to Chapter 7 (Command
Dictionary) of the associated manual Digital ANSI-Compliant Printing
Protocol Level 2 Programming Reference Manual. For brevity, that
chapter is called ‘‘Command Dictionary.’’
The implementation of DEC PPL2 on the LA75 Plus Companion Printer
involves a number of extensions and exceptions, which are summarized in
Table 1–1 and Table 1–2. For further information, see Table 18–1, and also
refer to the Command Dictionary.
Table 1–1 DEC PPL2 Extensions
Extensions
Sixel graphics
Sheet feeder
Hebrew character sets
Katakana character set
Greek character sets
Turkish character sets
Color
Metric line spacing
Download Font (DECDLD)
1–2 General Information About the LA75 Plus Companion Printer