Punch Unit Position Correction - Ricoh B230 Training Program

Paper Position sensor
HP sensor
① Checks the paper edge position by the paper position sensor
②
Moves the punch unit to the adjusted position from its home
position, the paper position sensor moves back to its home position
③
the punch unit moves back to its home position
These operations (skew correction before punching, and punch unit position
correction) increase the accuracy of the punch alignment.
The trailing edge of the sheet passes the finisher entrance sensor [A].
The paper position slide unit moves the paper position sensor forward to the edge
of the paper.
The paper position sensor detects the position of the paper edge and sends this
information to the punch unit board. The machine uses the detected position of the
paper edge to calculate the correct position for punching.
The upper transport motor switches on and rotates the feed rollers the prescribed
distance to put the paper under the punch unit.
Using the result of the position calculation, the punch unit control board moves the
punch unit to the adjusted punch position.
The paper position slide unit and its paper sensor, move back to the paper position
slide home position sensor , and the punch unit fires the punches to make the
holes.
The feed rollers feed the punched paper out of the punch unit and into the paper
path. The punch unit moves back to home position (detected by the home position
sensor.

Punch Unit Position Correction

Paper Position sensor
Punch Unit HP Sensor
Punch Unit
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