Canon imageCLASS MF8450c, Service Manual

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Chapter 7
7-28
F-7-44
12) Remove the cable guide [1].
- 1 screw [2]
- 2 claws [3]
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13) Remove the plate [1].
- 3 screws [2]
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14) Remove the main drive unit [1].
- 1 connector [2]
- 4 screws [3]
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7.5.2.3 Point to Note When Installing the Main Drive Unit
0020-8715
imageCLASS MF9170c / imageCLASS MF9150c / imageCLASS MF8450c
1. Alignment of the gears in the main drive unit
When installing the main drive unit, the corresponding gears of the host
machine [A] need to be interlocked in order starting from the top of the 5
gears.
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Following shows the procedure:
1) Align the gear [5]'s elongate hole [2] with the triangle [1].
2) Interlock the teeth of the gears [5] and [6] so that the holes [3] of the
gears will lie right next to each other.
3) Interlock the teeth of the gears [6] and [7] so that the holes [4] of the
gears will lie right next to each other.
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4) Interlock the teeth of the gears [3] and [4] so that the holes [1] of the
gears will lie right next to each other.
5) Interlock the teeth of the gears [4] and [5] so that the holes [2] of the
gears will lie right next to each other.
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2. Alignment of the main drive unit as Service Parts
Do not disassemble the main drive unit in the field.
Disassembling it may cause a functional fault.
When interlocking the gears [A], the teeth of the gears must be aligned
completely.
[1] [2]
[5]
[6]
[7]
[4]
[3]
[3]
[4]
[5]
[2]
[1]