Service manual

T- 5 4
C0910, C0914
C0920, C0924
Step Check Result Action
1
Lift-Up Motor turns when the 2
nd
Drawer is slid
out and then back in.
NO Correct drive coupling.
2
2
nd
Drawer Lift-Up Motor rotation: the voltage
across PJ3A-13B on Master Board and GND is
DC0V (motor deenergized) and DC24V (motor
energized) after the 2
nd
Drawer has been slid
back in.
YES Change motor.
NO Change Master Board.
3
I/O check for 2
nd
Drawer Lift-Up Motor Pulse
Sensor operation: the voltage across PJ3A-
11B on Master Board and GND changes in the
range between DC0V and DC5V while 2
nd
Drawer Lift-Up Motor is turning.
YES Change Master Board.
NO Correct drive coupling.
Change sensor.
4
I/O check for 2
nd
Drawer Paper Lift-Up Sensor:
the voltage across PJ4A-12B on Master Board
and GND is DC0V (sensor unblocked) and
DC5V (sensor blocked).
YES Change Master Board.
NO Change sensor.
Step Check Result Action
1
Lift-Up Motor turns when the 1
st
Drawer is slid
out and then back in.
NO Correct drive coupling.
2
1
st
Drawer Lift-Up Motor rotation: the voltage
across PJ3A-13A on Master Board and GND is
DC0V (motor deenergized) and DC24V (motor
energized) after the 1
st
Drawer has been slid
back in.
YES Change motor.
NO Change Master Board.
3
I/O check for 1
st
Drawer Lift-Up Motor Pulse
Sensor operation: the voltage across PJ3A-
11A on Master Board and GND changes in the
range between DC0V and DC5V while 1
st
Drawer Lift-Up Motor is turning.
YES Change Master Board.
NO Correct drive coupling.
Change sensor.
4
I/O check for 1
st
Drawer Paper Lift-Up Sensor:
the voltage across PJ4A-6B on Master Board
and GND is DC0V (sensor unblocked) and
DC5V (sensor blocked).
YES Change Master Board.
NO Change sensor.