Controlling The Aligning The Sheets - Canon Saddle Finisher-T2 Service Manual

Chapter 2

2.2.9 Controlling the Aligning the Sheets

The alignment motor (M5) drives the alignment plates each time a sheet is output, putting both left and right edges
of the sheet in order. The alignment plate motor is a 4-phase stepping motor. The position of the alignment plate is
identified in reference to the number of motor pulses from the alignment plate home position sensor (PI5).
The following briefly describes what takes place when the saddle stitching mechanism operates on two sheets.
1) When the first sheet has been output, the alignment plates butt against the left and right edges of the stack (first
alignment). The alignment plates leave the home position in advance and remain in wait at points 10 mm from the
edges of the stack.
2) The alignment plates move away from the edges of the stack over a short distance and then butt against the edges
once again (Second alignment).
2-26
F-2-30
Sheets
Alignment Alignment
plate plate
Alignment plate home
Paper positioning
position sensor
plate
(PI5)
F-2-31
0009-2545