Preparation; Procedure - Canon imageCLASS MF4890dw Service Manual

4
Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB (MF4780w/MF4770n/MF4750/MF4730) > Procedure
6)Remove the paper leading edge sensor PCB[1]
• 2 claws[2]
[1]
x2
[2]
[2]
Note:
The below picture shows how to wind the harness.
4 Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB (MF4780w/MF4770n/MF4750/MF4730) > Procedure
Removing the Fixing Delivery/Paper Width Sensor PCB
(MF4780w/MF4770n/MF4750/MF4730)

■ 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.(MF4780w/MF4770n/MF4750)
9)Remove the wireless LAN PCB.(MF4780w)

■ Procedure

F-4-586
(MF4730)
1)Remove the main controller mounting plate[1]
• 1 screw(with washer)[2]
• 1 screw(black TP)[3]
F-4-587
(MF4780w/MF4770n/MF4750)
1)Remove the main controller mounting plate[1]
• 4 screws(with washer)[2]
• 2 screws(black TP)[3]
x2
[1]
[3] [2]
4-224
F-4-588
4-224