Transfer Unit - Canon imageRUNNER ADVANCE 4551i Service Manual

Related Error Code
• E020-0000: The path between the sub hopper and the developing assembly is clogged with toner.
• E024-0000: The connector of Developing Assembly Toner Level Sensor (S25) is disconnected.
• E024-0001: The Developing Assembly Toner Level Sensor (S25) is disconnected.
• E025-0000: The connector of the Feeding Area Toner Level Sensor (S51) is disconnected.
• E025-0001: Failure of the Bottle Motor (M17)
• E025-0002: Unstable rotation of the Bottle Motor (M17)

Transfer Unit

The transfer unit mainly consists of the static eliminator and transfer roller which rotates in connection with the drum unit.
■ Transfer Bias/Separation Static Eliminator Bias Control
DC bias is applied to the transfer roller and static eliminator.
No.
[1] Separation static eliminator bias control signal
[2] Transfer bias control signal
Static eliminator
Environment sensor
Transfer charging roller
[3]
Transfer bias
control circuit
DC Controller PCB
Name
Transfer charging roller
Photosensitive drum
Static eliminator
HVT PCB
[2]
Static eliminator bias
control circuit
No.
[3] Environment sensor detection signal
100
2. Technology
[1]
Name