Lexmark MS823 Service Manual

Top cover removal.....................................................................................................................................................455
Printhead removal.....................................................................................................................................................455
Bin full sensor cover removal.................................................................................................................................460
Sensor (standard bin full) removal ........................................................................................................................460
Bin cover removal ......................................................................................................................................................461
Bottom side removals....................................................................................................................................464
Tray insert removal....................................................................................................................................................464
Separator pad removal ............................................................................................................................................464
Pick roller removal.....................................................................................................................................................465
Optional tray drive gear removal ..........................................................................................................................466
Sensor (duplex path) with cover removal ...........................................................................................................466
Sensor (paper size) removal...................................................................................................................................467
Sensor (tray 1 pass‑through) removal...................................................................................................................468
Sensor (tray 1 pick) removal....................................................................................................................................469
Optional 2100-sheet tray removals............................................................................................................ 470
Optional 2100‑sheet tray removal ........................................................................................................................470
A5 length guide removal..........................................................................................................................................471
2100-sheet tray insert removal ..............................................................................................................................472
2100-sheet tray rear cover removal ..................................................................................................................... 473
2100-sheet tray left cover removal....................................................................................................................... 473
2100-sheet tray right cover removal ....................................................................................................................476
Motor (2100-sheet tray transport) removal.........................................................................................................478
2100-sheet tray top cover removal.......................................................................................................................479
2100-sheet tray front cover removal ....................................................................................................................482
Sensor (2100-sheet tray pick) removal ................................................................................................................483
2100-sheet tray controller board removal ..........................................................................................................483
2100-sheet tray elevator drive removal...............................................................................................................484
Sensor (2100-sheet tray paper size) removal ....................................................................................................485
2100-sheet tray interface cable removal.............................................................................................................486
2100-sheet tray bellcrank removal .......................................................................................................................488
2100-sheet tray rails removal.................................................................................................................................489
Sensor (2100-sheet tray near empty) removal...................................................................................................490
Sensor (2100-sheet tray A5 length guide) removal...........................................................................................491
Sensor (2100-sheet tray pick roller index) removal...........................................................................................491
Sensor (2100-sheet tray paper present) removal .............................................................................................492
2100-sheet tray paper feeder removal................................................................................................................493
Optional 250- and 550-sheet tray removals...........................................................................................495
Optional 250‑ and 550-sheet tray removal .......................................................................................................495
250‑ and 550-sheet tray left cover removal......................................................................................................496
250‑ and 550-sheet tray right cover removal ...................................................................................................498
250‑ and 550-sheet tray rear cover removal .....................................................................................................501
250‑ and 550-sheet tray insert front cover removal ...................................................................................... 502
Tray level indicator removal....................................................................................................................................503
Pick roller removal.....................................................................................................................................................503
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Table of contents
12

Lexmark MS823 Specifications

General

Print Technology	Monochrome Laser
Print Speed	Up to 65 ppm
Print Resolution	1200 x 1200 dpi
Monthly Duty Cycle	Up to 300, 000 pages
Recommended Monthly Page Volume	5, 000 - 75, 000 pages
Processor Speed	1 GHz
Standard Memory	512 MB
Connectivity	USB, Ethernet
Standard Input Capacity	650 pages
Maximum Paper Input	4, 400 sheets
Media Types Supported	Plain paper, Card stock, Envelopes, Labels, Transparencies
Operating System Compatibility	Windows, Linux
Duplex Printing	Automatic