Canon ImageRunner iR8500 Series Service Manual page 388

Chapter 8
1) Remove the developing assembly from the machine.
2) Remove the blade unit.
3) Remove the three mounting screws [1] from the rear, and detach the
deceleration gear retainer [2].
[1]
4) Remove the three gears [3].
[3]
5) Remove the E-ring [4], and detach the pressure arm [5].
[5]
6) Remove the E-ring [6], gear [7], pressure roll [8], washer [9], grip
ring [10], seal [11], butting roll [12], washer [9], and bearing [13] in
the order indicated.
8-48
[2]
[1]
F-8-97
F-8-98
[4]
F-8-99
[8]
[7]
[6]
7) Remove the E-ring [14] and the pressure arm [15] at the front.
8) Remove the C-ring [16], washer [17], pressure roll [18], seal [19],
washer [17], butting roll [20], C-ring [16], and bearing [21]; the,
remove the two screws [22], and detach the bushing [23] and then the
developing sleeve [24].
[24]
[23]
[21]
[16]
[20]
Do not leave fingerprints or oil on the surface of the developing
cylinder. Wipe off any with lint-free paper. (Do not use solvent.)
[13]
[9]
[12]
[11]
[10]
[9]
F-8-100
[15]
[14]
F-8-101
[22]
[17]
[19]
[18] [17]
[16]
F-8-102