Service manual

T- 5 6
C0900, C0904
C0950, C0954
Step Check Result Action
1
Lift-Up Motor turns when the 3
rd
Drawer is slid
out and then back in.
NO Correct drive coupling.
2
3
rd
Drawer Paper Lift-Up Motor rotation: the
voltage across PJ5A-3B on Control Board and
GND is DC0V (motor deenergized) and DC24V
(motor energized) after the 3
rd
Drawer has
been slid back in.
YES Change motor.
NO Change Control Board.
3
I/O check for 3
rd
Drawer Lift-Up Motor Pulse
Sensor operation: the voltage across PJ5A-9B
on Control Board and GND changes in the
range between DC0V and DC5V while 3
rd
Drawer Paper Lift-Up Motor is turning.
YES Change Control Board.
NO Correct drive coupling.
Change sensor.
4
I/O check for 3
rd
Drawer Paper Lift-Up Sensor:
the voltage across PJ8A-2 on Control Board
and GND is DC0V (sensor unblocked) and
DC5V (sensor blocked).
YES Change Control Board.
NO Change sensor.
Step Check Result Action
1
Lift-Up Motor turns when the 4
th
Drawer is slid
out and then back in.
NO Correct drive coupling.
2
4
th
Drawer Paper Lift-Up Motor rotation: the
voltage across PJ5A-1B on Control Board and
GND is DC0V (motor deenergized) and DC24V
(motor energized) after the 4
th
Drawer has
been slid back in.
YES Change motor.
NO Change Control Board.
3
I/O check for 4
th
Drawer Lift-Up Motor Pulse
Sensor operation: the voltage across PJ5A-5A
on Control Board and GND changes in the
range between DC0V and DC5V while 4
th
Drawer Paper Lift-Up Motor is turning.
YES Change Control Board.
NO Correct drive coupling.
Change sensor.
4
I/O check for 4
th
Drawer Paper Lift-Up Sensor:
the voltage across PJ6A-2 on Control Board
and GND is DC0V (sensor unblocked) and
DC5V (sensor blocked).
YES Change Control Board.
NO Change sensor.