Xerox 7142, Service Manual

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RJ-901C/RJ-900C Maintenance Manual 4 Parts Replacement
4-1
4 Parts Replacement
4.1 Introduction ............................................................................................. 4- 3
4.2 Removal of Covers ................................................................................. 4- 5
4.2.1 Removing R Side Cover ................................................................ 4-6
4.2.2 Removing Operation Panel Unit .................................................... 4-8
4.2.3 Removing L Side Cover ................................................................. 4-9
4.2.4 Removing Ink Holder (I/H) Cover................................................. 4-11
4.2.5 Removing Front Cover................................................................. 4-12
4.2.6 Removing Top Cover ................................................................... 4-13
4.2.7 Removing Media Guide R2.......................................................... 4-14
4.2.8 Removing Scroller Receiver (L, R) .............................................. 4-14
4.3 Replacement of Board Base Section Components ........................... 4- 16
4.3.1 Replacing Connector Panel, Network Interface Card (NIC),
Cooling Fan ................................................................................. 4-16
4.3.2 Removing Board Bracket ............................................................. 4-18
4.3.3 Replacing Main Board Assembly ................................................. 4-21
4.3.4 Replacing Power Board Assembly............................................... 4-22
4.3.5 Replacing Inlet Assembly............................................................. 4-24
4.4 Replacement of PF Driving Section Components ............................. 4- 26
4.4.1 Replacing PF Motor Assembly..................................................... 4-26
4.4.2 Replacing PF_ENC Assembly ..................................................... 4-27
4.4.3 Replacing PF_ENC Scale............................................................ 4-28
4.5 Replacement of CR Driving Section Components............................. 4- 30
4.5.1 CR Motor Assembly ..................................................................... 4-30