Preface; Definitions - Lexmark E250DN - Govt Laser 30PPM Special Build Mono Taa Service Manual

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Preface

This manual contains maintenance procedures for service personnel. It is divided into the following chapters:
1.
General information contains a general description of the printer and the maintenance approach used to
repair it. Special tools and test equipment are, as well as general environmental and safety instructions.
2.
Diagnostic information contains an error indicator table, symptom tables, and service checks used to
isolate failing field replaceable units (FRUs).
3.
Diagnostic aids contains tests and checks used to locate or repeat symptoms of printer problems.
4.
Repair information provides instructions for making printer adjustments and removing and installing
FRUs.
5.
Connector locations uses illustrations to identify the connector locations and test points on the printer.
6.
Preventive maintenance contains the lubrication specifications and recommendations to prevent
problems.
7.
Parts catalog contains illustrations and part numbers for individual FRUs.
Appendix A contains service tips and information.
Appendix B contains representative print samples.

Definitions

Note: A note provides additional information.
Warning: A warning identifies something that might damage the product hardware or software.
CAUTION: A caution identifies something that might cause a servicer harm.
CAUTION: When you see this symbol, there is a danger from hazardous voltage in the area of the
product where you are working. Unplug the product before you begin, or use caution if the product
must receive power in order to perform the task.
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Lexmark™ E250d and E250dn