Canon ImageRunner iR8500 Series Service Manual page 631

- Clean the drum in widths of 5 to 10 cm in peripheral direction.
- For a single width, you may force the lint-free paper back and forth 15 to 20 times without damaging the drum.
5) Wait until the alcohol has evaporated; then, dry wipe the drum with lint-free paper. If traces remain, repeat step 4) and increase the number of trips made.
6) Rorate the drum so that that new areas may be cleaned (5 to 10 cm). Repeat steps 3) to 5) until the entire surface of the drum has been cleaned.
7) Remove the cleaning blade assembly.
8) Insert a ruler [3] between the magnet roller [1] and the scraper [2]; then, move it from the front to the rear and then from the rear to the front to breake
the caking toner.
9) Turn the magnet roller [1] to make sure that the coating of waste toner is even.
If as follows, repeat step 8):
- The surface of the magnet roller is coated in distinct lines.
- The surface has dents in some areas.
- The surface has lumps of toner.
10) Remove the cleaning blade from the cleaning blade assembly.
11) Butt the edge of the cleaning blade [7] that has been turned over or newly mounted against the rear of the blade cleaning plate [8].
F-13-35
[2]
[3]
[1]
[2]
F-13-36
[3]
[1]
Chapter 13
13-39