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4-5. ATVC (Auto Transfer Voltage Control
• Adjusts the transfer bias voltage based on the age and cleanliness of the transfer rollers.
Fixed current is output to first
transfer roller
Image Transfer Belt is cleaned
Resistance of first transfer
roller is measured
First transfer voltage is determined
Second transfer roller is cleaned
ATVC Control
Fixed current is output to
second transfer roller
Resistance of second
transfer roller is measured
Second transfer voltage is determined
High Voltage Unit
Fixed Voltage Output
Fixed Current
Fixed Current
Measured Resistance
Second Transfer Roller
Transfer Belt
Drive Roller
First Transfer Roller
Transfer Belt
PC Drum Ground