Lexmark MS521 Service Manual

Service menus........................................................................................... 137
Understanding the printer control panel....................................................................................................137
Using the printer control panel...............................................................................................................................137
Understanding the status of the power button and indicator light...............................................................138
Using the home screen.............................................................................................................................................138
Diagnostics menu............................................................................................................................................ 140
Entering the Diagnostics menu ..............................................................................................................................140
Reports..........................................................................................................................................................................140
Advanced Print Quality Samples............................................................................................................................140
Event Log......................................................................................................................................................................140
Input tray quick print...................................................................................................................................................141
Output bin quick feed ...............................................................................................................................................142
Printer Setup................................................................................................................................................................142
Printer diagnostics and adjustments.....................................................................................................................144
Additional input tray diagnostics............................................................................................................................146
Configuration Menu.........................................................................................................................................147
Service Engineer menu..................................................................................................................................150
Entering Invalid engine mode.................................................................................................................................150
Entering the Service Engineer (SE) menu............................................................................................................150
General SE ...................................................................................................................................................................150
Network SE ..................................................................................................................................................................150
Parts removal.............................................................................................153
Removal precautions...................................................................................................................................... 153
Data security notice...................................................................................................................................................153
Handling ESD‑sensitive parts..................................................................................................................................154
Controller board/control panel replacement ......................................................................................................155
Restoring the printer configuration after replacing the controller board ....................................................155
Restoring solutions, licenses, and configuration settings ...............................................................................158
Updating the printer firmware ................................................................................................................................159
Backing up eSF solutions and settings ................................................................................................................160
Disconnecting ribbon cables....................................................................................................................................161
Ribbon cable connectors ..........................................................................................................................................161
Zero Insertion Force (ZIF) connectors...............................................................................................................161
Horizontal top contact connector .....................................................................................................................162
Horizontal bottom contact connector..............................................................................................................165
Vertical mount contact connector.....................................................................................................................168
Horizontal sliding contact connector ................................................................................................................171
Low Insertion Force (LIF) connector.................................................................................................................174
Printhead assembly adjustment .............................................................................................................................175
Removal procedures....................................................................................................................................... 177
Left side removals............................................................................................................................................ 177
4600-830, -835, -895
Table of contents
5

Lexmark MS521 Specifications

General

Print Technology	Monochrome Laser
Print Speed	Up to 46 ppm
Print Resolution	1200 x 1200 dpi
Monthly Duty Cycle	Up to 120, 000 pages
Processor Speed	1 GHz
Standard Output Capacity	250 sheets
Operating System Compatibility	Windows, Mac OS, Linux
Hard Drive	Optional
Recommended Monthly Page Volume	2000 - 15000 pages
Duplex Printing	Standard
Connectivity	USB, Ethernet
Media Types Supported	Paper Labels, Card Stock, Envelopes, Plain Paper, Transparencies