Procedure; Removing The Engine Controller Pcb (Mf4870Dn/Mf4830D); Preparation - Canon imageCLASS MF4890dw Service Manual

4
Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (MF4870dn/MF4830d) > Procedure
Caution:
When mounting the main fan, attach the harness [2] to the upper-right side of the
fan with the fan label [1] facing inwards.
4 Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (MF4870dn/MF4830d) > Procedure
[2]
[1]
F-4-400
Removing the Engine Controller PCB (MF4870dn/
MF4830d)

■ Preparation

1) Remove the left cover
2)Remove the SADF unit and reader unit.
3)Remove the right cover
4)Remove the front cover unit.
5)Remove the upper cover.
6)Remove the duplex feed unit.
7)Remove the main controller PCB
8)Remove the FAX NCU PCB(MF4870dn)

■ Procedure

(MF4870dn)
1)Remove the main controller mounting plate[1]
• 4 screws(with washer)[2]
• 2 screws(black TP)[3]
[1]
x6
[3]
(MF4830d)
1)Remove the main controller mounting plate[1]
• 1 screw(with washer)[2]
• 1 screw(black TP)[3]
4-163
[2]
[2]
F-4-401
4-163