Canon imageCLASS LBP325dn, Service Manual

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Layout of Sensors
PS1
SW4
PS12
PS22
PS21
PS2
PS3
PS11
PS4
PS13
Symbol Name
PS1 Cassette Paper Sensor
PS2 TOP Sensor
PS3 Multi-purpose Tray Paper Sensor
PS4 Delivery Tray Full Sensor
PS11 Pre-registration Sensor
PS12 Cassette Paper Surface Sensor
PS13 Fixing Delivery Sensor
PS21 Paper Width Sensor
PS22 Duplex Feed Sensor
SW4 Cassette Detection Switch
Lifter control
Paper inside a cassette is lifted up by the Lifting Plate.
The Lifting Plate is lifted up by rotating the Cassette Lifter Motor (M4).
The paper surface is detected by the Cassette Paper Surface Sensor (PS12).
When the Lifting Plate is rising, the Lifter Motor (M4) is controlled to keep the paper surface steady so that pickup can be performed
stably.
2. Technical Explanation (Device)
39