Canon iR6570 series Service Manual page 382

Chapter 9
[2] [1]
8) Turn the fixing upper unit upside down.
9) Remove the screw [1], and detach the shutter drive gear shaft support
plate [2].
[1]
10) Remove the 2 screws [1], and slide out the heater unit [2] to detach.
[1]
The shutter is thin (0.5 mm) and, therefore, can easily deform.
Deformation could well lead to damage to the surface of the fixing roller
by interference. Take full care not to deform the shutter.
9-28
[2]
F-9-51
[2]
F-9-52
[2] [1]
F-9-53
As wear grows, the surface of the shutter may become discolored
because of heat or show scratches because of friction. These symptoms,
however, are least likely to affect the performance of the shutter.
11) Remove the 2 screws [1], and detach the core positioning plate
(front) [2].
[1]
12) Remove the screw [1], and remove the pin [2]. (You will be using
the removed screw and pin later in step 14).)
[1] [2]
13) Turn the shutter drive gear [1] with your finger until the cut-off [2]
of the shutter gear matches the hole [3] in the plate.
[3]
[3]
14) Put the pin [1] you removed in step 12) in the hole [2]; then, fix it in
place using a screw [3].
[2] [1]
F-9-54
F-9-55
[2] [1]
[1]
F-9-56