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Lexmark C78x User Manual

Lexmark C78x
480 pages
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xx Service Manual
5061
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, as well as general environmental and safety instructions, are
discussed.
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.
Change history
Revision date Updates
2012/7/20 Updated the assembly index in “Output expander” on page 7-43.
2011/01/06 Changed the description for PN 40X1867 to front door strap under “Covers” on page 7-3.
2011/12/15 Changed PN 40X1828 to PN 40X1778 for the printhead assembly under “Printheads” on
page 7-13.
2011/12/07 Added one item under the installation notes for the Front roll” on page 4-70 and “Rear
roll” on page 4-71.
2011/11/24 Changed PN 40X1765 to PN 40X0070 for the pick roll tires in “Autocompensator
assembly” on page 7-21.

Table of Contents

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Lexmark C78x Specifications

General IconGeneral
BrandLexmark
ModelC78x
CategoryPrinter
LanguageEnglish

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