Mechanical Operations; Punching Operation - Konica Minolta bizhub C250 Service Manual

3. Mechanical operations

3. Mechanical operations
3.1

Punching operation

• The Punch Section consists of the Dyes Section and the Punch Blade Section
• The Punch, which is attached to the Off-Center Cam of the Punch Axis, is driven by the
Punch Motor and creates the punching operation with a reciprocating movement con-
verted from the rotation movement of the Punch Axis.
• The Punching operation for the first sheet of paper completes when the Punch Home
Position Sensor is switched ON from OFF after the Punch Axis turns 180 deg. in the for-
ward direction.
• The Punching operation for the second sheet of paper is made when the Punch Axis
turns 180 deg. in the reverse direction.
1. Punch Axis Stops at Home Position.
2. Punch Axis rotates by 90 deg. in forward direction and punch holes are made.
3. Punch Axis rotates by another 90 deg. in forward direction and punch operation is com-
pleted.
Punch Home Position
Sensor (PI1P-PK)
Off-Center Cam
Punch
Dyes
Paper
Dyes
4
Theory of Operation Ver. 1.0 Jul. 2005
Detection gap
Punch Axis