Before Removing The Engine Controller Pcb; Models Without Fax (Mf4430/Mf4420N/Mf4410/Mf4412/D550/D520); Removing The Engine Controller Pcb - Canon MF4500 Series Service Manual

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Disassembly/Assembly > Controller System > Removing the Engine Controller PCB Models without FAX (MF4430/MF4420n/MF4410/MF4412/D550/D520)

Before Removing the Engine Controller PCB

Models without FAX (MF4430/MF4420n/MF4410/
MF4412/D550/D520)
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 without FAX or NET) (Refer to page 4-100)
7-2) Remove the main controller PCB. (models without FAX, with NET) (Refer to page 4-102)

Removing the Engine Controller PCB

Models without FAX (MF4430/MF4420n/MF4410/
MF4412/D550/D520)
Note:
Refer to the below steps when removing a main controller mounting plate because
steps differ according to model.
Refer to step 1-1) for the models without FAX or NET (MF4430/MF4550d/MF4410/
MF4412/D550/D520)
Refer to step 1-2) for the models without FAX, with NET (MF4420n)
4 Disassembly/Assembly > Controller System > Removing the Engine Controller PCB Models without FAX (MF4430/MF4420n/MF4410/MF4412/D550/D520)
1-1) Remove the main controller mounting plate [1].
• 3 screws (with washer) [2]
• 2 screws (black TP) [3]
x5
[1]
[3]
1-2) Remove the main controller mounting plate [1].
• 3 screws (with washer) [2]
• 2 screws (black TP) [3]
x5
[1]
[3]
[2]
F-4-230
[2]
F-4-231
4-96
4-96