Noise From Around Developing Drive Assembly/Cracked Developing Drive Gear - Canon imagePRESS C7000VP Series Trouble Shooting Information

2.9 Noise from around developing drive assembly/Cracked developing
drive gear
 Description
Because of unbalance of starter inside the developing assembly, the screw rotates under heavy
load and the rail may bend in the direction of the arrow in the picture above. This will make the
developing assembly and the developing drive unit out of gears. As a result, when the machine
is activated, a noise is generated due to inadequate gear engagement.
Subsequently, if the gears break, neither developing cylinder nor developing screw rotates,
resulting in the occurrence of E020.
Figures above show the location where developing assembly engages with developing rail unit.
1 and 4 To locate developing assembly
2. Developing screw rotation gear
3. Developing cylinder rotation gear
Trouble Shooting Information for C7000VP series
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Rev. 2.0
2010/09/17