Operations - Canon ImageRunner 600 Service Manual

2.

Operations

The horizontal registration sensor moves to the start position (A4 detection position) when the
main power switch is turned on or the front cover is closed, and moves to a detection position to suit
the size of paper expected in the lower feeding assembly. Its position of detection is "paper width +
2 mm."
The paper detection mechanism starts when paper moved to the lower feeding assembly has
moved past the confluence sensor (PI 15) and has been moved over a specific distance (about 10
mm past the horizontal registration sensor).
The position of paper is detected with reference to the start position and by finding out the
difference between the start position and the actual paper position from the number of drive pulses
(1 pulse = about 0.16 mm) of the motor.
Duplexing reversal
motor (M11)
Lower feeding middle
clutch (CL16)
Lower feeding rear
clutch (CL17)
Post-confluence
sensor (PS15)
Horizontal registration
motor (M15)
Horizontal registration
sensor (PS18)
Home position
Start position
Start position + 2 mm
COPYRIGHT © 1999 CANON INC.
Main power switch ON
Start position
detection
: moves to the rear.
: moves to the front.
Figure 7-408 Horizontal Registration Detection
CANON imageRUNNER 600 REV.1 JAN. 2000 PRINTED IN U.S.A.
CHAPTER 7 PICK-UP/FEEDING SYSTEM
Paper position detection
Paper about 10 mm from the
registration sensor.
Paper position detection
7-33