Service Engineer menu..........................................................................................................................261
Accessing the service engineer (SE) menu...................................................................................................... 261
Service engineer (SE) menu ............................................................................................................................ 261
Repair information...................................................................................263
Removal precautions.............................................................................................................................263
Handling ESD‑sensitive parts .......................................................................................................................... 263
Controller board/control panel replacement ................................................................................................. 264
eSF solutions backup ...................................................................................................................................... 264
Ribbon cable connectors ................................................................................................................................ 265
Zero Insertion Force (ZIF) connectors ........................................................................................................ 265
Horizontal top contact connector .............................................................................................................. 266
Horizontal bottom contact connector........................................................................................................ 269
Vertical mount contact connector ............................................................................................................. 272
Horizontal sliding contact connector ......................................................................................................... 275
Low Insertion Force (LIF) connector........................................................................................................... 278
Adjustments..........................................................................................................................................279
Media aligner roller adjustment ..................................................................................................................... 279
Polygon printhead mechanical registration adjustment ................................................................................ 281
Adjusting skew................................................................................................................................................ 283
ADF skew adjustment (front side) .................................................................................................................. 283
ADF skew adjustment (back side) ................................................................................................................... 284
ADF skew adjustment (deskew roller) ............................................................................................................ 285
Media squareness check................................................................................................................................. 286
Print skew correction...................................................................................................................................... 288
Copy skew correction ..................................................................................................................................... 289
Removal procedures.............................................................................................................................291
Base printer - cover removals...............................................................................................................291
Column left front cover removal (MX81x) ...................................................................................................... 291
Column left outer cover removal (MX81x) ..................................................................................................... 292
Column right inner cover removal.................................................................................................................. 294
Column right outer cover removal.................................................................................................................. 295
Left cover removal (MX71x)............................................................................................................................ 296
Left cover removal (MX81x)............................................................................................................................ 298
Left inner cover removal................................................................................................................................. 300
Rear door removal .......................................................................................................................................... 302
Rear lower cover removal............................................................................................................................... 304
Rear lower door removal (MX81x) ................................................................................................................. 305
Right cover removal (MX71x) ......................................................................................................................... 306
Right cover removal (MX81x) ......................................................................................................................... 307
Right inner cover removal (MX71x) ................................................................................................................ 308
Top cover removal .......................................................................................................................................... 309
Base printer- front removals.................................................................................................................309
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