Printer User Manual
Table Of Contents
- FRONT MATTER
- TABLE OF CONTENTS
- INTRODUCTION
- CHAP 1-SETTING UP THE PRINTER
- CHAP 2-PAPER HANDLING
- CHAP 3-USING THE PRINTER
- CHAP 4-USING SOFTWARE AND GRAPHICS
- Using the LQ-2550 With Application Programs
- Computer-Printer Communication
- Enhancing Your Printing
- Graphics
- User-Defined Characters
- Designing Your Characters
- Design Grids
- Data Numbers
- Sending Information to Your Printer
- Printing User-Defined Characters
- Copying ROM Characters to RAM
- Letter Quality Characters
- Proportional Mode Characters
- Superscripts and Subscripts
- The Graphics Command
- Column Reservation Numbers
- A simple Graphics Program
- Using Hand-Calculated Data to Print Graphics
- Using Software and Graphics
- Mixing Print Styles
- CHAP 5-MAINTENANCE AND TRANSPORTATION
- CHAP 6-TROUBLESHOOTING
- Troubleshooting
- Problems and Solutions
- The Printer Does Not Print
- The Printer Stops Printing
- The Printout is Spaced Incorrectly
- The Printout is Faint or Uneven
- The Printout is Not what You Expect
- Single Sheets Do Not Feed Properly
- Continuous Paper Does Not Feed Properly
- Cut Sheet Feeder Does Not Load Paper Correctly
- The Short Tear-Off Feature Does Not Work Properly
- Color Printing Is Not What You Expect
- Data Dump Mode
- CHAP 7-USING PRINTER OPTIONS
- CHAP 8-COMMAND SUMMARY
- APPENDIX A-TECHNICAL SPECIFICATIONS
- GLOSSARY
- INDEX

ESC :
Copy ROM into RAM
Format:
ASCII code:
ESC :
0
n
0
Decimal:
27 58 0
n
0
Hexadecimal:
1B
3A 00 n 00
Comments:
This code copies the characters in the ROM into RAM so that
specific characters can be redefined. Orator and Orator-S are only
available with the Multi-Font Module. The variable n represents
the font family as follows.
0: Roman
5: OCR-B
1: Sans Serif
6: OCR-A
2: Courier
3: Prestige
4: Script
ESC %
Format:
ASCII code:
ESC %
n
Decimal:
27 37 n
Hexadecimal: 1B 25 n
Select User-Defined Set
Comments:
ESC & is required to first define the character set. The following
values can be used for n:
0: Selects the normal set.
1: Selects the user-defined set.
ESC 6
Enable Printable Characters
Format:
ASCII code:
ESC 6
Decimal:
27 54
Hexadecimal: 1B 36
Comments:
When the Epson Extended Graphics character table is selected,
this code enables the printing of codes 128 through 159 (decimal)
as characters, not control codes.
Command Summary
8-33