Lexmark MS321 Service Manual

Redrive assembly removal......................................................................................................................................236
Redrive gear plate removal ....................................................................................................................................237
Top side removals...........................................................................................................................................238
Top cover removal.....................................................................................................................................................238
Printhead removal.....................................................................................................................................................239
Optional 250/550-sheet tray removals.................................................................................................... 242
Separator roller assembly removal.......................................................................................................................242
Component locations...............................................................................245
Printer configurations.....................................................................................................................................245
Attaching cables..............................................................................................................................................245
Printer roller locations....................................................................................................................................247
Printer sensor locations.................................................................................................................................249
Controller board connectors....................................................................................................................... 250
Maintenance............................................................................................. 255
Inspection guide............................................................................................................................................. 255
Scheduled maintenance...............................................................................................................................255
Maintenance kits........................................................................................................................................................255
Resetting the maintenance counter .....................................................................................................................256
Cleaning the printer....................................................................................................................................... 256
Cleaning the printhead lenses.................................................................................................................... 257
Parts catalog............................................................................................. 258
Legend...............................................................................................................................................................258
Assembly 1: Covers........................................................................................................................................ 259
Assembly 2: Control panel............................................................................................................................ 261
Assembly 3: Electronics 1..............................................................................................................................263
Assembly 4: Electronics 2............................................................................................................................ 265
Assembly 5: Electronics 3.............................................................................................................................267
Assembly 6: Electronics 4............................................................................................................................ 269
Assembly 7: Paper transport 1.......................................................................................................................271
Assembly 8: Paper transport 2.................................................................................................................... 273
Assembly 9: MPF and standard tray.......................................................................................................... 275
Assembly 10: Optional trays......................................................................................................................... 277
Assembly 11: Maintenance kits.................................................................................................................... 279
Assembly 12: Miscellaneous......................................................................................................................... 281
4600-830, -835, -895
Table of contents
7

Lexmark MS321 Specifications

General

Print Technology	Monochrome Laser
Memory	256 MB
Display	2-line LCD
Processor Speed	1 GHz
Maximum Monthly Duty Cycle	50, 000 pages
Recommended Monthly Page Volume	500 - 5000 pages
Input Capacity	250 sheets
Output Capacity	150 sheets
Connectivity	USB, Ethernet
Network Connectivity	Ethernet
Supported Operating Systems	Windows, Mac, Linux
Print Resolution	Up to 1200 x 1200 dpi