MX-FN30, MX-FN31. Service Manual (Revised February 2017). - Sharp Copying Equipment Service Manual (repair manual). Page 99

MX-FN30/FN31  Technical Explanation Punch unit  7 – 5

This puncher unit is installed in the feed inlet unit inside the finisher. It punches holes in paper fed from the host machine according to the puncher
controller PWB instructions. Paper feeding inside the puncher unit is performed by the delivery roller of the upstream connection machine and the
inlet roller of the finisher. In the paper feed path, there are the punch inlet sensor (PS301) and punch horizontal registration sensor (PBA301/
PBA302), which detect the paper feed status and the horizontal registration position, respectively.

The punch operation of this puncher unit is performed by two mechanical units: punch unit and punch slide unit. They are driven by the punch motor
(M301) and punch shift motor (M302), respectively.

No,

Signals name

Load sign name

Parts name

[1]

Punch Motor drive signal

M301

Punch Motor

[2]

Punch Shift Motor drive signal

M302

Punch Shift Motor

[3]

Punch Horizontal Registration Sensor detection signal

PS301

Punch Inlet Sensor

[4]

Punch Inlet Sensor detection signal

PBA301

Punch Horizontal Registration Sensor (light-emitting)

PBA302

Punch Horizontal Registration Sensor (light-receiving)

M302

[2]

M301

[1]

[3]

[4]

Puncher Controller PCB

PS301

PBA302

PBA301

Punch Motor (M301)

Punch Shift Motor (M302)

Punch Motor Clock

Sensor (PS305)

Cam

Punch

Paper Stopper Guide

Punch Inlet Sensor (PS301)

Paper Stopper Guide

Punch Horizontal Registration Sensor (light-emitting) (PBA301)

Punch Slide HP Sensor (PS302)

Punch HP Sensor 1 (PS303)

Punch HP Sensor 2 (PS304)

Punch Horizontal Registration Sensor (light-receiving) (PBA302)