Feed Drive System; Overview - Canon imageRUNNER iR2270 Service Manual

Chapter 2

2.2 Feed Drive System

2.2.1 Overview

The puncher unit installed in the feed path between the host machine and finisher punches
holes in the paper when the paper stops temporarily. When the trailing edge of the paper
reaches the prescribed position, the puncher stops the paper to punch holes along the trailing
edge of the paper.
Names and roles of the motor, solenoid, and sensors used for punching are listed below.
Motor
Punch motor
Solenoid
Punch slide solenoid*1
*1 Puncher unit R1 only
Sensor
Punch motor clock sensor
Punch home position sensor
Trailing edge sensor
(Photosensor PCB /LED PCB)
Punch dust full sensor
(Punch dust full sensor PCB)
2-2
T-2-1
Role
Drives the punch.
T-2-2
Role
Avoids a paper end.
T-2-3
Role
Detects a punch motor clock.
Detects the home position of the punch shaft.
Detects the trailing edge of paper.
Detects that the punch dust container is full.
0006-6513