T- 2
(2) Clutches
(3) Motors
Step Check Result Action
1
Does the output signal of the Controller/Mechanical
Control Board go from HIGH to LOW when the clutch
is energized?
NO
Replace the Con-
troller/Mechanical
Control Board.
YES Replace the clutch.
Step Check Result Action
1
Is the LOCK signal of the Controller/Mechanical Con-
trol Board HIGH when the printer is in the standby
state?
NO
Replace the Con-
troller/Mechanical
Control Board.
Replace the motor.
2
Does the REM signal of the Controller/Mechanical
Control Board go from HIGH to LOW when the motor
is energized?
YES Replace the motor.
NO
Replace the Con-
troller/Mechanical
Control Board.
4025T528AA
4025T526AA
GND
REM
LOCK
2
1
3