Canon ImageRunner iR8500 Series Service Manual page 639

Work Procedure 2
a. Cleaning the Photosensitive Drum
b. Remove the Toner from the Magnet Roller Assembly
c. Turning Over/Replacing the Cleaning Blade
During the work, take care not to rotate the magnet roller drive assembly; otherwise, waste toner may fall out of the center assembly.
1) Slide out the process unit.
Be sure to place the paper over the fixing/feeding unit.
2) Take out the photosensitive drum.
3) Moisten the lint-free paper [1] with alcohol [2] (5 to 10 cc), and put drum cleaning powder [3] (CK0429; 0.2 to 0.3 g) on the lint-free paper.
4) While forcing the lint-free paper against the photosensitive drum, move it from the front to the rear and then from the rear to the front to wipe the drum.
- Keep the width of the cleaning movement to 5 to 10 cm.
- For a single area, the lint-free paper may be moved back and forth 15 to 20 times; a little force will not affect the life of the drum.
5) When the alcohol has completely evaporated, dry wipe the drum with lintfree paper. If the drum has been wiped unevenly, go back to step 4), and clean
once again.
[3]
CK-0429
[1]
F-13-52
5 10cm
F-13-53
[2]
Chapter 13
13-47