Canon imageRUNNER iR2270 Service Manual page 161

Chapter 2
[punch shaft stopped/
home position]
When two holes are punched, the 3-hole puncher is fed reciprocally in the escape direction
(hole puncher rise direction) as shown below.
[punch shaft stopped/
home position]
2-8
[punch shaft is rotated 90 deg
in the reverse direction/
hole punched]
F-2-7
[punch shaft is rotated 90 deg
in the reverse direction/
hole puncher rises to
topmost position]
F-2-8
[punch shaft is rotated 180 deg
in the reverse direction/
punch operation completed]
[punch shaft is rotated 180 deg
in the reverse direction/
hole puncher returns to
original position]