Canon imageCLASS MF4890dw Service Manual page 313

4
Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (MF4720w/MF4712/MF4710) > Procedure
3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A].
[1]
[2]
4)Remove the harness retaining spring[1], and free the harness from the guide[A].
• 2 flat cables[2]
[A] [3] [1]
x9
7
[3]
4 Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (MF4720w/MF4712/MF4710) > Procedure
[3]
[A]
F-4-628
[3]
[3]
[2]
connectors[3]
F-4-629
5)Remove the engine controller PCB[1].
• 2 screws(with washers)[2]
• 1 screw(with tooth lock washer)[3]
• 1 screw(black TP)[4]
• 1 hook[5]
x4
[3]
[4]
4-237
[1] [5]
[2]
F-4-630
4-237