Service manual

T- 1 4
• Paper is stopped in the Vertical Transport Section.
Step Check Result Action
1 Vertical Transport Rollers are dirty with paper
dust, deformed, or worn.
NO Change paper.
2 Paper take-up guide plate or vertical transport
guide plate is dirty or deformed.
YES Clean or change.
3
I/O check for 1
st
Drawer Paper Take-Up Sensor
operation when the 1
st
Drawer is used: the volt-
age across PJ3A-6A on Master Board and
GND is DC0V when the sensor is unblocked
and DC5V when the sensor is blocked.
YES Change Master Board.
NO Correct actuator.
Change sensor.
4
I/O check for 2
nd
Drawer Paper Take-Up Sen-
sor operation when the 2
nd
Drawer is used: the
voltage across PJ3A-6B on Master Board and
GND is DC0V when the sensor is unblocked
and DC5V when the sensor is blocked.
YES Change Master Board.
NO Correct actuator.
Change sensor.
5 I/O check for Paper Leading Edge Sensor SW1
operation when the 1
st
Drawer is used: the volt-
age across PJ3A-3A on Master Board and
GND is DC0V when the sensor is unblocked
and DC5V when the sensor is blocked.
YES Change Master Board.
NO Correct actuator.
Change sensor.
6 I/O check for Paper Leading Edge Sensor SW2
operation when the 2
nd
Drawer is used: the
voltage across PJ3A-3B on Master Board and
GND is DC0V when the sensor is unblocked
and DC5V when the sensor is blocked.
YES Change Master Board.
NO Correct actuator.
Change sensor.
7 Upper Vertical Transport/Manual Feed Motor
turns when the Start key is pressed with the 1
st
Drawer selected.
NO Correct drive coupling.
Change motor or Master
Board.
8 Lower Vertical Transport Motor turns when the
Start key is pressed with the 2
nd
Drawer
selected.
NO Correct drive coupling.
Change motor or Master
Board.