Pickup and feed system
The pickup and feed system, which picks up and feeds paper, consists of the various feed rollers.
This printer has two pickup sources (the cassette and the single-sheet priority feed slot) and one
delivery source (the face-up tray). The following components are part of the pickup and feed system:
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Manual feed slot paper sensor (SR3): detects the presence of paper in the single-sheet priority
feed slot
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Cassette paper sensor (SR2): detects the presence of paper in the cassette
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DC controller controls the following to drive each feed roller:
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Main motor (M1)
● Fuser/delivery motor (M2)
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Pickup motor (M3)
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Solenoid (SL1)
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Solenoid (SL2)
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Solenoid (SL3)
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Photo sensors:
● SR1, SR4, and SR5 on the paper transport path detect the arrival and passage of paper
●
SR9 detects the fuser pressure roller alienation in the fuser
●
SR8 detects the paper width
The figure below illustrates the motors, solenoids, and sensors.
NOTE There is a short pause before the paper is picked up.
50 Chapter 4 Operational theory ENWW
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