Canon iR6000 Service Manual

COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
CHAPTER 5 PICK-UP/FEEDING SYSTEM
5-36 P
4.4.2 Operation
The home position of the duplexing horizontal registration sensor is detected each time
the main power switch is turned on, jam recovery is made, or front cover is closed; and the
sensor moves to the start position (for A4) when the registration sensor turns on.
When paper moved to the duplexing feeding assembly reaches the duplexing paper sensor
(PS34), the horizontal registration motor (M16) turns on, and the duplexing horizontal reg-
istration sensor (PS31) starts detection of the edge of the paper; this is done during the 100-
msec period in which the duplexing feed right motor (M19) remains at rest, and each time a
double-sided print is made.
The start position for detection is set to about 10 mm from the edge of paper, determined
in reference to an ideal position of paper obtained based on the position of the slide guide of
the manual feed tray and the size of the cassette being used when the registration sensor
turns on.
The detection of paper is done with reference to the start position, and the discrepancy be-
tween the start position and the actual position of the paper is identified with reference to
the number of pulses (a signal pulse being about 0.16 mm) generated by the motor.
*1: While the light-blocking plate is absent, the edge of paper and butting against the
sensor are detected.
*2: Different paper sizes result in different paper edge positions, thus different S.P.
H.P: Start position of the duplexing horizontal sensor.
S.P: Start position of detection by the duplexing registration sensor.
F05-404-02
INTR/STBY
PRINT
H.P
S.P
*1
Duplexing feeding right
motor (M18)
Registration sensor
(PS29)
Duplexing paper
sensor (PS34)
Duplexing horizontal
registration motor (M16)
Duplexing horizontal
registration sensor (PS31)
Position of
horizontal
registration
sensor (PS31)
Edge of paper
Main power switch ON
Reverse Forward
Reverse
10 mm (approx.)
100 msec (approx.)
Forward
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Canon iR6000 Specifications

General

Print Technology	Laser
Copy Resolution	600 x 600 dpi
Scan Resolution	600 x 600 dpi
Functions	Print, Copy, Scan
Print Speed	60 ppm
Duplex Printing	Yes
Network Connectivity	Ethernet
Paper Sizes	A3, A4, B4, B5
Warm-Up Time	30 seconds
Multiple Copies	Up to 999
Magnification	25-400%
Copy Speed	60 ppm (A4)