Epson AcuLaser C2600 Service Manual page 107

EPSON AcuLaser C2600/2600
MAIN UNIT
Main Drive Motor
A DC motor that drives all the motors for feeding papers.
Pickup Clutch
Transmits/interrupts the drive force from the Main Drive Motor to the Pickup
Roller.
Pickup Roller
A half-moon shaped roller that feeds the paper to the Feed Roller 1.
Feed Clutch
Transmits/interrupts the drive force from the Main Drive Motor to the Feed Roller.
Feed Roller 1/Feed Roller 2
Transports the paper fed from the cassette to the registration position by the drive
force of the Main Drive Motor.
Paper Width Detection Sensor
A photo-interrupter sensor that detects the size of the paper fed into the Main Unit.
The actuator works with the paper passing, and the shield board on the actuator
switches on/off the sensor. The sensor detects whether the paper width is wider or
narrower than the standard width (210 mm).
Gate Sensor
A photo-interrupter sensor that detects the paper is reached at the registration position.
The actuator works with the paper passing, and the shield board on the actuator
switches on/off the sensor.
Gate Clutch
Transmits/interrupts the drive force from the Main Drive Motor to the Gate Roller.
Gate Roller
This roller is driven by the Main Drive Motor to send the paper to secondary
transfer process in exact timing with the beginning of the secondary transfer.
In order to take up any slackness in the paper and send it without skew, the leading
edge of the paper is pushed against the Gate Roller, which is not rotating at that
time, by the drive force of the Feed Roller. Then the paper is transported to the
secondary transfer section as the Gate Roller starts to rotate.
Operating Principle
Main Drive Motor
Feed Clutch
Pickup Clutch
Paper Width
Detection Sensor
Gate Sensor
Figure 2-29. Main Unit Paper Feed System Main Components
Paper Feed Mechanism
Gate Clutch
Revision B
Gate Roller
Feed
Roller 2
Feed
Roller 1
Pickup Roller
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