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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

Xerox 7142 Service Manual

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