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4. CONVEYANCE SECTION
4.3.3
Theory of Operation Ver2.0 Sep.2006
Alignment control
On paper conveyed to the punching position, an alignment operation is made by the 2 alignment plates to
FD-501
improve the accuracy of the punch hole positioning and the folding. And its home position is detected by the
alignment plate home sensor (PS10). When the start button is turned ON, M12 rotates in the forward direction to
move the alignment plates /Fr and /Rr to the standby position of the paper size.
When the paper is conveyed to the punch position in a specified number of steps after it passes through the FD
entrance sensor (PS1), the roller solenoid /1 (SD5), the roller solenoid /2 (SD6), the roller solenoid /3 (SD7) and
the roller solenoid /4 (SD8) release the pressure of each roller and M12 conducts the alignment operation.
The roller solenoids that release each of the rollers from pressure are modified according to the size and the
direction of paper aligned.
A specified period of time after completion of punching the last paper, M12 rotates in the reverse direction to
bring the alignment plate back to the home position.
FD entrance sensor (PS1)
Punch conveyance motor (M2)
Alignment
motor (M12)
F
R
Roller solenoid (SD5, 6, 7, 8)
[1]
24
[2]
[3]
[4]
[1]
Start signal ON
[3]
Alignment operation
[2]
Move to the standby position
[4]
Move to the home position
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