Phaser 6280 Color Laser Printer Service Manual
2-59
Theory of Operation
Solenoid
The Solenoid opens/closes the shutter or controls the position of the Gear for
transferring torque of the Motor to the Roller.
The Solenoid becomes an electromagnet by transferring electric current
through the Coil inside the Case and attracts the Plunger.
When the Coil lost its power, electromagnetic is lost and the Plunger is
returned to its original position by spring action, which allows the shutter to
operate or the Gear to move to the predefined position.
Unlike a Clutch, a Solenoid generates a loud noise.
Sensor
A transmissive type sensor is composed of the light-emitting side and the
light-receiving side that are placed opposite to each other, allowing the light to
pass from the former to the latter. On the basis of whether or not the light path
is blocked due to the actuator, etc..., the sensor detects the paper absence/
presence or the moving parts position such as at the home position or
elsewhere.
Solenoid
Magnetic coil
Plunger
Actuator
Optic Sensor/Actuator
Содержание Phaser 6280
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