Parts Replacement Procedure; Laser Scanner Unit; Removing The Laser Scanner Unit; When Replacing The Laser Scanner Unit - Canon iR5055 Series Service Manual

6.4 Parts Replacement Procedure

6.4.1 Laser Scanner Unit

6.4.1.1 Removing the Laser Scanner Unit

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
1) Open the right door unit (upper); then, remove the 1 screw [2] from the
door strap, and fully open the right door unit (upper).
2) Slide the developing assembly locking unit [2] in the direction of the ar-
row to detach.
- 1 Screw [1]
3) Detach the scanner cover [4].
- 4 Screw [3]
[3] [4]
[1] [2]
4) Disconnect the 4 connectors [1].
5) Detach the 1 leaf spring [3].
- 2 Screw [2]
6) Hold the front of the laser scanner unit [4], and lift and take out.
[3]

6.4.1.2 When Replacing the Laser Scanner Unit

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
If the temperature of the fixing assembly is 150 deg C or higher when the
main power switch is tuerned on, the machine will not execute potential con-
trol. If such is the case after replacing the scanner unit, manually execute po-
tential control in service mode as follows:
1) Make the following selections in service mode: COPIER> FUNCTION>
DPC> DPC; then, enter '1', and press [OK].
[2] [1]
F-6-7
[3]
F-6-8
[1]
[2] [4]
F-6-9
2) Turn off and then back on the main power switch.
0015-4863
0015-9960
Chapter 6
6-5