Before Removing The Fixing Delivery/Paper Width Sensor Pcb; Removing The Fixing Delivery/Paper Width Sensor Pcb - Canon MF4500 Series Service Manual

4
Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB
Before Removing the Fixing Delivery/Paper Width
Sensor PCB
1-1) Remove the left cover. (Duplex models) (Refer to page 4-31)
1-2) Remove the left cover. (Single-sided models) (Refer to page 4-32)
2-1) Remove the DADF unit and reader unit. (models with DADF) (Refer to page 4-40)
2-2) Remove the SADF unit and reader unit. (models with SADF) (Refer to page 4-53)
2-3) Remove the copyboard cover and reader unit. (models with copyboard) (Refer to page
4-64)
3-1) Remove the right cover. (Duplex models) (Refer to page 4-33)
3-2) Remove the right cover. (Single-sided models) (Refer to page 4-34)
4) Remove the front cover unit. (Refer to page 4-35)
5) Remove the upper cover. (Refer to page 4-35)
6-1) Remove the rear cover. (Single-sided models) (Refer to page 4-37)
6-2) Remove the duplex feed unit. (Duplex models) (Refer to page 4-155)
7-1) Remove the main controller PCB. (models with FAX) (Refer to page 4-99)
7-2) Remove the main controller PCB. (models without FAX or NET) (Refer to page 4-100)
7-3) Remove the main controller PCB. (models without FAX, with NET) (Refer to page 4-102)

Removing the Fixing Delivery/Paper Width Sensor PCB

Note:
Refer to the below steps when removing a main controller mounting plate because
steps differ according to model.
Refer to steps 1-1-1), 1-1-2) and 1-1-3) for the models with FAX (MF4580dn/MF4570dn/
MF4550d/MF4553d/MF4554d/MF4450/MF4452/MF4453)
Refer to step 1-2) for the models without FAX or NET (MF4430/MF4550d/MF4410/
MF4412/D550/D520)
Refer to step 1-3) for the models without FAX, with NET (MF4420n)
4 Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB
1-1-1) Remove the harness guide [1].
• 1 screw (black TP) [2]
• 1 wire saddle [3]
1-1-2) Remove the anti-noise plate [1].
• 1 screw (black TP) [2]
[2]
4-107
[3]
[1]
[2]
F-4-261
[1]
F-4-262
4-107