Canon imageRUNNER ADVANCE C5500 Series Service Manual page 294

■ Procedure
CAUTION:
Before removing the Laser Scanner Unit, be sure to check the serial numbers on the 2 units and the location where the
unit is installed.
Before installing the units, be sure to refer to the serial numbers described above and install each unit to the same location
as that before installation.
If the installation locations of the units are switched by mistake, image displacements may occur.
NOTE:
This procedure shows removal of the Laser Scanner Unit for C/Bk. (The same procedure applies to the Laser Scanner Unit for Y/
M, except for some additional works described later.)
1. Lift and hook the Drum Heater [1].
• 2 Screws [2]
• 1 Hook [3]
2x
2. Remove the Image Formation Suction Duct [1].
• 1 Screw [2]
• 1 Claw [3]
NOTE:
The following steps 3 and 4 are required only when removing the Laser Scanner Unit 1 (for Y/M).
[1]
1x
[3]
[2]
1x
[1]
280
4. Disassembly/Assembly
[3]
[2]