Pickup And Feed System; Overview/Configuration; Overview - Canon MF8100 Series Service Manual

Chapter 2
DCNT Board
H.V.T
Main motor
DCM
Roller
701
engaging
clutch
CL2
Roller engaging
detection gear
Roller
engaging
sensor
PS714
Secondary
Engaging cam
transfer roller
Engaging lever
F-2-44

2.4 Pickup and Feed System

2.4.1 Overview/Configuration

2.4.1.1 Overview

0007-4988
The pickup/feed system serves to pick up and move paper, and it consists of various feed rollers.
The machine possesses 2 inlet slots for paper (i.e., multifeeder tray and paper feeder) and 2 outlet slots (face-up tray and face-down tray).
The presence/absence of paper is checked by the paper sensor (PS716, for the paper feeder) and by the multifeeder paper sensor (PS718, for the multifeeder tray).
The various feed rollers of the machine are controlled by the DCNT board, which governs 2 motors, 2 clutches, and 2 solenoids.
The paper path is equipped with 3 photointerrupters (PS1, PS711, PS717, PS720), checking to see whether paper has reached or moved past a specific sensor po-
sition.
If paper fails to reach or move past a specific sensor within a specific period of time, the CPU on the DCNT board will identify the condition as being a jam, and
communicate the fact to the SCNT board.
The following is a diagram showing how the machine's motors, solenoids, and sensors are arranged:
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