Detecting The Horizontal Registration Position - Canon imageRUNNER 7095 Service Manual

8.8.7 Detecting the Horizontal Registration Position

Paper position detection
Detection start timing
Drive
Position measurement
Related service mode
Related error code
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 etection 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 10mm past the horizontal
registration sensor).
The position of paper is detected with reference to the start position and by finding out the difference be-
tween the start position and the actual paper position from the number of drive pulses (1 pulse = about 0.16
mm) of the motor.
By the horizontal registration sensor (PS18)
By the post-confluence sensor (PS15)
By the horizontal registration motor (M15)
By controlling the horizontal registration motor pulses (1 pulse = about 0.16 mm)
COPIER > ADJUST > FEED-ADJ > ADJ-REFE
E051: The home position cannot be detected within a specific period of time.
Horizontal registration motor (M15)
paper
T-8-21
Horizontal registration
sensor (PS18)
Moves through
the sensor.
F-8-49
Chapter 8
0010-8222
8-29