Removing The Main Controller Pcb(Mf4820D); Preparation; Procedure; Removing The Paper Leading Edge Sensor Pcb(Mf4820D) - Canon imageCLASS MF4890dw Service Manual

4
Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(MF4820d) > Procedure

Removing the Main Controller PCB(MF4820d)

■ Preparation

1) Remove the left cover

■ Procedure

1)Remove the 3 flat cables[1] and 3 connectors[2].
x6
[1]
2)Remove the main controller PCB[1].
• 1 screw(bind)[2]
• 4 screws(black TP)[3]
[3]
x5
[2]
[3]
4 Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(MF4820d) > Procedure
[2]
F-4-465
[1]
[3]
F-4-466
Removing the Paper Leading Edge Sensor
PCB(MF4820d)
■ Preparation
1) Remove the left cover
2)Remove the copyboard cover 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
■ Procedure
1)Remove the main controller mounting plate[1]
• 1 screw(with washer)[2]
• 1 screw(black TP)[3]
x2
[1]
4-184
[3] [2]
F-4-467
4-184