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Lexmark CS720 - User Manual

Lexmark CS720
493 pages
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CS720, CS725, and C4150
5028-135, -630, -639
Service Manual
Start diagnostics
Maintenance
Safety and notices
Trademarks
Index
January 25, 2016 www.lexmark.com
P/N 12G3399

Table of Contents

Questions and Answers:

Lexmark CS720 Specifications

General IconGeneral
TypeOriginal
Compatibility- CS720
Product colorBlack
Printing colorsYellow
Country of originChina
Quantity per pack1 pc(s)
Brand compatibilityLexmark
Color toner page yield7000 pages
Cartridge return & recyclingYes
Print technologyLaser printing
Harmonized System (HS) code84439990
Weight and Dimensions IconWeight and Dimensions
Package depth160 mm
Package width190 mm
Package height75 mm
Package weight380 g

Summary

Notices and safety information

Laser notice

Printer certified as Class I laser product; contains Class IIIb laser; human access to radiation is prevented.

Preface

Conventions

Explains notes, warnings, and cautions used in the manual for clarity.

General caution statements

Important warnings about electrical hazards, potential injury, hot surfaces, and tipping risks.

General information

Finding the serial number

Instructions to locate the printer's serial number on the front cover for identification.

Diagnostic information

Troubleshooting overview

General guidance for diagnosing issues, including initial checks and POR sequence.

Repair information

Removal precautions

Critical safety warnings for handling ESD-sensitive parts and potential hazards during component removal.

Data security notice

Information on printer memory types and procedures for erasing data for security purposes.

Maintenance

Inspection guide

Guidelines for inspecting parts at specific intervals for damage, cleaning, or replacement.

Scheduled maintenance

Details on when to replace maintenance kits based on page counts and error codes.

Appendix A: Printer specifications

Power consumption

Details the power usage of the printer in various operating modes like Printing, Sleep, and Hibernate.

Selecting a location for the printer

Guidelines for printer placement, ventilation, and environmental conditions.

Appendix C: Theory of operation

Paper path and transport components

Explains how paper moves through the printer from input to output, and component functions.

Print engine theory

Explains the electrophotographic (EP) printing process, including charge, expose, develop, and transfer steps.

Color theory

Discusses RGB and CMYK color models, color specification, and printed color matching.

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