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Lexmark C540N Service Manual

Lexmark C540N
270 pages
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Repair information 4-39
5025-2xx, 4xx
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High-voltage power supply (HVPS) with or without spring
1.
Remove the left cover. See “Left cover assembly removal on page 4-6.
2. Is there a leaf spring (A) biasing the HVPS upward?
If yes, then go to “High-voltage power supply (HVPS) with spring” on page 4-41.
If no (as shown below), then go to “High-voltage power supply (HVPS) without spring” on
page 4-40.

Table of Contents

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Lexmark C540N Specifications

General IconGeneral
Print TechnologyLaser
Print Resolution1200 x 1200 dpi
Standard Paper Capacity250 sheets
Input Capacity250 sheets
Output Trays Capacity150 sheets
ConnectivityUSB, Ethernet
Processor400 MHz
Standard Memory128 MB
Network ReadyYes
Warranty1 Year
Printer TypeLaser
Recommended Monthly Volume1500 - 3000 pages
Operating System CompatibilityWindows, Mac, Linux
Media TypeCard Stock, Envelopes, Labels, Plain Paper, Transparencies
Network10/100 Base-TX Ethernet

Summary

Lexmark C54x Printer General Information

Lexmark Printer Print Quality

Discusses component wear and checking print quality settings.

Lexmark Printer Power and Electrical Specifications

Details power requirements and typical electricity consumption.

Lexmark Printer Diagnostic Information

Lexmark Printer Diagnostic Start

Guide to locating error codes, symptoms, and service checks for troubleshooting.

Lexmark Printer POR (Power-On Reset) Sequence

Describes the sequence of events during printer startup self-test.

Lexmark Printer Symptom Tables

Lists printer symptoms and corresponding actions for diagnosis.

Lexmark Printer Error Codes and Messages

Details user status, customer attendance, and error messages with explanations.

Lexmark Printer Paper Jam Messages (2xx)

Lists paper jam error codes, descriptions, and instructions for clearing jams.

Lexmark Printer Service Error Messages

Provides a list of service error codes for printheads, fuser, and software issues.

Lexmark Printer Diagnostic Aids

Lexmark Printer Accessing Service Menus

Explains how to access diagnostic and configuration menus for testing.

Lexmark Printer Diagnostics Menu (Diag Menu)

Outlines the structure and available tests within the Diagnostics Menu.

Lexmark Printer Registration

Details how to adjust print registration for proper alignment.

Lexmark Printer Alignment Procedure

Guides on aligning color planes for optimal print quality.

Lexmark Printer Transfer Roll Service Check

Provides steps to check the transfer roll for proper function.

Lexmark Printer Repair Information

Lexmark ESD-Sensitive Parts Handling

Provides essential precautions for handling electronic components safely.

Lexmark Printer Removal Procedures

General guidelines for disassembling printer components and handling FRUs.

Lexmark Printer Controller Board Removal

Steps for removing the main controller board, a critical component.

Lexmark Printer Fuser Assembly Removal

Detailed steps for removing the fuser assembly.

Lexmark Printer Image Transfer Unit (ITU) Removal

Detailed procedure for removing the image transfer unit.

Lexmark Printer Printhead Removal

Steps for removing and replacing the printhead.

Lexmark Printer Connector Locations

Lexmark Printer Controller Board Diagram

Diagram showing the layout of connectors on the controller board.

Lexmark Printer Controller Board Connectors

Detailed pinout and signal information for controller board connectors.

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