Canon IR3300, IR2800, IR2200 manual Operation, F05-703-02

CHAPTER 5 PICK-UP/FEEDING SYSTEM

7.3.2 Operation

1) Timing of Detecting Home Position

When the main power switch is turned on, During jam recovery, When the front cover is closed

2) Start Position

The detection start position is set at a point about 10 mm from the edge of paper whose movement is ideal with reference to the data on the paper width collected from the slide guide on the manual feed tray and the cassette size when the registration sensor goes ON.

3) Detectiong operation

When paper fed to the duplex feeding assembly reaches the registration roller, the hori- zontal registration motor (M3) goes ON, and the duplex horizontal registration sensor (PS11) starts paper edge detection. The detection takes place for each time a double-sided print is made.

The detection of paper position is done with reference to the start position, and the dis- placement from the actual paper position is identified with reference to the drive pulses from the motor (1 pulse = about 0.16 mm).

Main power switch ON

	INTR/STBY
Registration motor
(M9)
Registration sensor
(PS10)
Duplex horizontal	Forward

registration motor(M3)

Duplex horizontal registration sensor(PS11)

H.P

Duplex horizontal
registration sensor	S.P
(PS11) position
	*1
Paper edge

PRINT

Reverse

10 mm(approx.)

Reverse

Forward

*1:	the position of the edge of paper differs depending on the size of paper, hence different SP.
HP:	start position of the duplex horizontal sensor.
SP:	detection start position of the duplex horizontal registration sensor.
	F05-703-02

5-34 P COPYRIGHT © 2001 CANON INC. CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001