Lexmark CS720 Service Manual page 7

Repair information....................................................................................253
Removal precautions..................................................................................................................................... 253
Data security notice ..................................................................................................................................................253
Handling ESD-sensitive parts.................................................................................................................................254
Controller board/control panel replacement .....................................................................................................254
Restoring the printer configuration after replacing the controller board ...................................................255
Restoring solutions, licenses, and configuration settings ..............................................................................258
Updating the printer firmware ...............................................................................................................................259
Backing up eSF solutions and settings .............................................................................................................. 260
Disconnecting ribbon cables................................................................................................................................. 260
Adjustments...................................................................................................................................................... 261
Printhead alignment adjustment ............................................................................................................................261
Registration adjustment...........................................................................................................................................263
Removal procedures......................................................................................................................................265
Cover removals............................................................................................................................................... 265
Front cover removal..................................................................................................................................................265
Top cover removal.....................................................................................................................................................268
Left cover removal ..................................................................................................................................................... 271
Right cover removal..................................................................................................................................................272
Motor cover removal ................................................................................................................................................ 273
Toner door removal...................................................................................................................................................276
Toner door mount bracket removal......................................................................................................................278
Toner door mount removal .....................................................................................................................................279
External air filter removal........................................................................................................................................ 280
Control panel removals.................................................................................................................................280
Upper control panel removal ................................................................................................................................ 280
Badge cover removal ...............................................................................................................................................283
Number pad cover removal....................................................................................................................................284
Control panel arms removal ...................................................................................................................................284
Speaker removal .......................................................................................................................................................286
Control panel base cover removal .......................................................................................................................287
Duplex removals............................................................................................................................................. 289
Duplex outer guide removal...................................................................................................................................289
Duplex inner guide removal ....................................................................................................................................291
Pivot shaft removal.....................................................................................................................................................291
Tensioner belt removal ............................................................................................................................................292
Sensor (duplex) removal..........................................................................................................................................293
Sensors (fuser buckle and narrow media) removal..........................................................................................294
Left removals....................................................................................................................................................296
Motor (EP drive) removal .........................................................................................................................................296
Power cable removal................................................................................................................................................297
Motor (output) removal.............................................................................................................................................297
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