Canon iR2422 series, Service Manual

Page: 163 / 308

Chapter 6
6-11
6.10 Parts Replacement Procedure
6.10.1 Drum Unit
6.10.1.1 Removing the Drum Unit
0020-4411
1) Open the front cover [1].
2) Turn the developing assembly locking lever [2] clockwise to open the left
door [3].
3) Draw out the drum unit [4].
F-6-16
6.10.2 Developing Assembly
6.10.2.1 Removing the Developing Assembly
0020-4412
1) Open the front cover.
2) Turn the developing assembly locking lever clockwise to open the left
door.
3) Draw out the drum unit.
4) Remove the rear cover.
5) Remove the right cover (lower).
6) Remove the delivery tray.
7) Remove the developing assembly locking lever [1].
- Screw [2] 1 pc.
8) Release the two hooks [3] (marked with snap-fit mark), and then remove
the toner bottle cover [4].
F-6-17
9) Draw out the developing assembly [1].
F-6-18
6.10.2.2 Precautions about Installation of Developing
Assembly
0020-4413
Front side
Fit the convex portion of the main body in the concave portion on the bottom
of the developing assembly.
F-6-19
Rear side
Fit the pin [1] seen in the back of the main body in the support hole [2] pro-
vided at the back of the developing assembly.
F-6-20
6.10.2.3 Procedure after Replacing the Developing
Assembly
0020-4415
<Going through the Developer Idling Mode>
1) Plug the power cord into the outlet.
2) Open the front cover.
3) With the front cover open, turn on the main power switch.
4) When a message appears on the operation panel display, press the follow-
ing keys to enter the service mode:
Additional Functions key > # key
5) Select "Service's Choice" using the arrow key, and then press the OK key.
6) Select "Printer Setting" using the arrow key, and hen press the OK key.
- When attaching or detaching the drum unit, open the left door fully to
prevent the damage to the drum unit.
- To prevent exposure of the drum, cover the drum unit with a few sheets
of paper and place it in a safe place.
[2]
[1]
[3]
[4]
[2]
[1]
[3]
[4]
When installing the developing assembly, follow the precaution given
below.
After replacing the developing assembly, go through the following
steps in the developing assembly idle rotation mode before installing the
toner cartridge.
[1]
[1] [2]