Adjusting Punching Positions; Punching - Oki B930 Service Manual

Adjusting Punching Positions

The punching positions from the paper edge in the direction of feed are determined by gently
pressing the paper against the Guide Assy (see Section 2.2).
While the punching positions from the paper edge in the direction of paper width are deter-
mined by the following method.
- Activate the Puncher Move Motor and move the Puncher to the front side until the Puncher
Move Home Sensor turns "L".
- Rotate reversely the motor and move the Puncher to the rear side until the sensor turns"H"
to determine the home position.
- The Puncher Move Motor is run to move the puncher to the front until the Side Regi
Sensor1 or 2 detects the paper edge, and then the puncher is further moved to the front
according to the pulse-number determined by the paper size.(The Puncher Move Motor
stops at this position.)
Puncher Front Sensor
Punch Hole
Select Sensor
Puncher Home Sensor
Puncher Motor Sensor

Punching

After punching positions are determined, activate the Puncher Motor to move the Cam Plate.
With the movement of the Cam Plate, the pins descend along the guide holes to punch the
paper.
This operation is performed for each sheet of paper.
The Cam Plate can lower the pins even while it is moving to the front or rear side.
The Puncher Motor is rotated forward or reversely for each sheet of paper, which is triggered
by the Puncher Front Sensor ON/OFF.
Puncher Move Home Sensor
Puncher Motor
2-65
Puncher Move Motor
Side Regi Sensor2
Side Regi Sensor1
FI6P008A1