Horizontal Registration Detection - Canon Finisher-AB1 Service Manual

3.4.3 Horizontal Registration Detection

1) About 150 msec after the lead edge of paper has moved past the inlet sensor (PS3), the finisher controller
PCB causes the horizontal registration detection unit shift motor (M6) to rotate clockwise so that the horizontal
registration sensor (UN12) moves to its standby position (paper edge) from home position.
Finisher controller PCB
M6
UN12
[1]Shift roller unit
[2]Horizontal registration detection unit
[3]Paper
2)The finisher controller PCB causes M6 to rotate clockwise so that UN12 moves to horizontal registration
detection position (11 mm toward the inside from standby position), during which UN12 detects the edge of
paper to be moved. The finisher controller PCB uses the results of the detection to compute the horizontal
registration value.
[1]
[2]
[3]
PS3
F-3-12
[4]Standby position
[5]Home position
[4]
PS3
Chapter 3
0015-2078
[5]
M6
3-13