Detecting The Horizontal Registration Position - Canon ImageRunner iR8500 Series Service Manual

Chapter 9
15. The 5th sheet is discharged.

9.8.11 Detecting the Horizontal Registration Position

iR105i/iR105+ / iR9070 / iR85+ / iR8070
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).
9-52
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
F-9-79
T-9-35
Horizontal registration
sensor (PS18)
Moves through
the sensor.
F-9-80
0007-0531