Service manual

T- 2 8
• Paper is stopped at the horizontal transport section.
Step Check Result Action
1 Horizontal Transport Rollers are dirty with
paper dust, deformed, or worn.
YES Clean or change.
2 Horizontal transport guide plate is dirty or
deformed.
YES Clean, correct, or change.
3 I/O check for Horizontal Transport Entry Sensor
operation: the voltage across PJ12A-6 on Con-
trol Board and GND is DC5V when the sensor
is unblocked and DC0V when the sensor is
blocked.
YES Change Control Board.
NO Correct actuator.
Change sensor.
4 I/O check for Horizontal Transport Jam Sensor
operation: the voltage across PJ12A-3 on Con-
trol Board and GND is DC5V when the sensor
is unblocked and DC0V when the sensor is
blocked.
YES Change Control Board or
Master Board.
NO Correct actuator.
Change sensor.
5 I/O check for Horizontal Transport Exit Sensor
operation: the voltage across PJ12A-4 on Con-
trol Board and GND is DC5V when the sensor
is unblocked and DC0V when the sensor is
blocked.
YES Change Control Board or
Master Board.
NO Correct actuator.
Change sensor.
6 Vertical Transport Motor turns when the Start
key is pressed with the cabinet selected.
NO Correct drive coupling.
Change motor or Control
Board.
Change Master Board.