Removing The Laser Scanner Unit (Mf4780W/Mf4770N/Mf4750/Mf4730); Preparation; Procedure - Canon imageCLASS MF4890dw Service Manual

4
Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (MF4780w/MF4770n/MF4750/MF4730) > Procedure
Removing the Laser Scanner Unit (MF4780w/
MF4770n/MF4750/MF4730)

■ Preparation

1)Remove the left cover.
2)Remove the SADF unit and reader unit.
3)Remove the right cover.
4)Remove the front cover unit.
5)Remove the upper cover

■ Procedure

Caution:
Do not disassemble the laser scanner unit because adjustment is required.
1) Remove the scanner cover [1].
• 2 screws (black TP) [2]
x2
4 Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (MF4780w/MF4770n/MF4750/MF4730) > Procedure
[2]
[1]
F-4-740
Caution:
• When mounting the scanner cover, pass the shutter open/close lever [1] through the
hole [A] in the scanner cover.
• Ensure that the shutter open/close lever [1] can move vertically.
4-275
[A]
[1]
F-4-741
[1]
F-4-742
4-275