Canon Color imageRUNNER LBP5280, Service Manual, Page: 158 / 284

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Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit > Procedure
Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit > Procedure
Laser Exposure System
Layout Drawing
[1]
[3]
[2]
Key
No.
Name Main Unit Reference Adjastment
during parts
replacement
Remarks
[1] Laser Scanner Unit Main Unit (Refer to
page 3-55)
-
[2] Laser Scanner Motor Laser Scanner
Unit
- - M7
[3] Laser Scanner PCB Laser Scanner
Unit
- - PCB10
F-3-117
T-3-14
Removing the Laser Scanner Unit
■
Preparation
1) Remove the Right Cover.(Refer to page 3-16)
2) Remove the Operation Panel Unit.(Refer to page 3-36)
3) Remove the Rear Upper Cover (Left).(Refer to page 3-14)
4) Remove the Upper Front Cover (Right) / USB Cover.(Refer to page 3-18)
5) Remove the Upper Cover.(Refer to page 3-19)
6) Remove the Right Frame Cover.(Refer to page 3-27)
7) Remove the Right Upper Frame/Right Upper Frame Unit.(Refer to page 0-11) / (Refer to
page 3-29)
8) Remove the Left Cover.(Refer to page 3-17).
9) Remove the Rear Cover.(Refer to page 3-13)
10) Remove the Rear Lower Cover.(Refer to page 3-15)
11) Remove the Rear Cover Rib Unit.(Refer to page 3-13)
12) Remove the Duplex Reverse Drive Unit.(Refer to page 3-35)
13) Remove the Delivery Unit.(Refer to page 3-84)
■
Procedure
CAUTION:
When replacing this part, execute the actions to be taken when replacing the Laser
Scanner Unit.
CAUTION:
Be sure not to disassemble the Laser Scanner Unit because it requires adjustment.