Canon imageCLASS MF4890dw Service Manual page 355

4
Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (L418S/L410/L190) > Procedure
Caution:
When install the scanner cover, be careful not to damage the motor driver PCB[1]
and the duplex relay PCB[2]
Caution:
When mounting the scanner cover, pass the shutter open/close lever [1] through the
hole [A] in the scanner cover
4 Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (L418S/L410/L190) > Procedure
[1]
[2]
F-4-752
[A]
[1]
F-4-753
Caution:
Ensure that the shutter open/close lever [1] can move vertically.
3)Move the laser scanner unit [1].
• 4 screws [2]
• 1 sponge[3]
x4
4-279
[1]
F-4-754
[2]
[2]
[3]
[1]
F-4-755
4-279