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Lexmark C750 Service Manual - Page 20

Lexmark C750 Manual

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5060-00x 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. xx Service Manual

Section	Page
Table of contents	3
Notices and safety information	11
Laser notice	11
Safety information	17
Preface	20
Definitions	20
1. General information	21
Tools required for service	21
Options and features	22
High performance	22
Print quality	22
Heavy volume reliability	22
Automatic calibration	22
Resolution	23
Toner darkness	23
Printer specifications	23
Dimensions	23
Power and electrical specifications	23
Electrical specifications	24
Operating clearances	24
Fuser web oiler upgrade kit and replacements	24
Upgrade kit	24
Replacements	24
Acoustics	25
Environment	25
Print speed and performance print speed	26
Performance	26
Time to first print	26
Processor	26
Duty cycle	26
Memory configuration	27
Available memory options	27
Media specifications	27
Acronyms	33
2. Diagnostic information	35
Start	35
POR (power-on reset) sequence	36
Symptom tables	37
Symptom table-base printer	37
Symptom table-500-sheet drawer option	38
Symptom table-HCIT 2000-sheet option	38
Symptom table-output expander option	39
Symptom table-5-bin mailbox option	39
Symptom table-finisher option	39
Error code table	40
Sub error code table	51
Programming errors - P101 through P116	54
Understanding the printer operator panel	54
Operator panel buttons	54
Color Menu	56
Utilities Menu	57
User attendance message table	62
Service checks	76
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Service Manual

5060-00

Preface

This manual contains maintenance procedures for service personnel. It is divided into the following chapters:

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.

Diagnostic information

contains an error indicator table, symptom tables, and service checks used to

isolate failing field replaceable units (FRUs).

Diagnostic aids

contains tests and checks used to locate or repeat symptoms of printer problems.

Repair information

provides instructions for making printer adjustments and removing and installing

FRUs.

Connector locations

uses illustrations to identify the connector locations and test points on the printer.

Preventive maintenance

contains the lubrication specifications and recommendations to prevent

problems.

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.