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

Ribbon:
MCBF:
MTBF:
Print head life:
Dimensions and weight:
Voltage:
Power consumption:
Frequency:
Insulation resistance:
Black ribbon cartridge
#7762:
Life expectancy (in Letter Quality
characters, at 48 dots/character): 3 million
Color ribbon cartridge
#7763:
Life expectancy (in Letter Quality
characters, at
48
dots/character)
Black:
1.0 million
Cyan:
0.7
million
Magenta:
0.7
million
Yellow
0.5
million
Film ribbon cartridge #7764:
Life expectancy (at 10 cpi, with bi-
directional printing, using
136
columns):
0.1
million*
* This number may vary depending on
print direction, characters per inch, or
text density per page.
For all components excluding print head:
5
million lines
6000 power-on hours (at
25%
duty)
200 million strokes per wire
Height: 7.7”
Width:
26.6"
Depth:
20.4"
Weight :
approx. 44 lbs
120
VAC
f
10%
400
watts maximum
49.5 to 60.5 Hz
10M ohms between AC power line and chassis
Dielectric strength (between AC line and chassis):
Can withstand
1.00
kV rms applied for one
minute or
1.2
kV
rms applied for one second.
Technical Specifications
A-5