Preface xvii
4025-XXX
Preface
This manual describes the Lexmark
TM
W820 (4025-XXX) and contains maintenance
procedures for service personnel only. 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 listed
in this chapter, 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 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.
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