Canon LBP-2000 Service Manual page 170

3 . A part in the pickup drive assembly is damaged.
Action: Remove the pickup drive assembly, and replace any damaged part.
4 . The paper feeder pickup motor (M201) is faulty.
Action: Replace the paper feeder pickup motor.
5 . The paper feeder pickup clutch (CL201) is faulty.
Action: Disconnect the connector J3 of the paper feeder pickup clutch. Measure the resist-
ance between the connectors J3-1 and J3-2 on the harness side. If not about 192
±19.2 replace the paper feeder pickup clutch.
6 . The paper feeder controller PCB is faulty.
Action: Replace the paper feeder controller PCB.
7 . The DC controller PCB is faulty.
Action: Replace the DC controller PCB.
3 - 4 . Transfer/feeding
<Possible Causes>
1 . The registration roller is soiled or worn.
Action: If the registration roller is soiled, clean it. If worn, replace it.
2 . The registration roller does not rotate smoothly.
Action: Replace the bushing, and make sure that the roller rotates smoothly.
3 . The transfer charging roller does not rotate smoothly.
Action: Replace the bushing. If the gear is worn, replace the gear.
4 . The lever of the registration paper sensor does not move smoothly. Or, it is worn or deformed.
Action: Fit it so that it moves smoothly. If worn or damaged, replace it.
5 . A part in the drive mechanism of the pickup assembly is damaged.
Action: Remove the drive mechanism, and replace any damaged part.
6 . The registration clutch (CL102) is faulty.
Action: Disconnect the connector J905 of the registration clutch. Measure the resistance
between the connectors J905-1 and J905-2 on the harness side. If not about 144
±14.4 replace the registration clutch.
7 . The registration paper sensor (PI101) is faulty.
Action: Replace the registration paper sensor.
8 . The DC controller PCB is faulty.
Action: Replace the DC controller PCB.
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CHAPTER 4
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