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Chapter 3 Removal and Replacement Procedures (RRPs)
RRP9.1 CONTROLLER CARD (PL9.1.3)
Use the wrist strap to protect the PWB from the electrostatic.
[Removal]
1) Remove PAPER TRAY COVER. (RRP3.2)
2) Remove three SCREW KNURLING (PL9.1.32) and a screw (silver, 6mm) that fix ESS ASSY
to the printer.
3) Holding two handles of the ESS ASSY, draw it out.
4) If there is the OPTION HDD ASSY in the printer, remove the OPTION HDD ASSY.
(RRP9.10)
5) If there is the OPTION MULTI PROTOCOL CARD in the printer, remove the OPTION
MULTI PROTOCOL CARD. (RRP9.11)
6) Remove two screws (silver, 6 mm) that fix CONTROLLER CARD to PLATE ASSY REAR
(PL9.1.2) and three screws fixing the interface.
7) Removing CONTROLLER CARD interface connector from the hole in PLATE ASSY REAR,
remove CONTROLLER CARD together with PWB BRACKET R (PL9.1.30) and PWB
BRACKET L (PL.9. 29).
8) Remove CONTROLLER CARD from the front projections of PWB BRACKET R and PWB
BRACKET L.
9) Remove SPRING EARTH ESS (PL9.1.37) from PWB BRACKET L.
10) Remove BLOCK PWBA (PL9.1.36) from CONTROLLER CARD.