Canon MF4500 Series Service Manual page 179

4
Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit Duplex models (MF4580dn/MF4570dn/MF4550d/MF4553d/MF4554d/D550/D520)
2) Move the laser scanner unit [1].
• 4 screws [2]
[2] [2]
x4
[1]
3) Remove the laser scanner unit [1].
• 1 flat cable [2]
• 1 connector [3]
[2]
4 Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit Duplex models (MF4580dn/MF4570dn/MF4550d/MF4553d/MF4554d/D550/D520)
[1]
F-4-288
[3]
[1]
F-4-289
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.
4-116
[A]
[1]
F-4-290
[1]
F-4-291
4-116