Phaser 6180 Color Laser Printer Service Manual 2-27
Theory of Operation
Paper Detection
Since the paper path from Tray 1/Duplex to the Registration Sensor and from
the paper tray to the Registration Sensor are different, the Registration
Sensor is provided with Actuators A and B.
■ Actuator A detects the sheet fed from Tray 1/Duplex.
■ Actuator B detects the sheet fed from the paper tray.
The movement of Actuator A does not affect Actuator B.
s6180-272
Registration Sensor
Actuator A
Actuator B
From Paper Tray
Paper
Normal Position
Registration Sensor
Registration Sensor
Actuator A
Actuator A
Actuator B
Actuator A
Actuator B
From Tray 1 (MPT) or Duplex
Paper
Registration Sensor Spring (A)
Registration Sensor Spring (B)
Registration Sensor
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