T-3
(4) Motors
Step Check Result Action
1Is the LOCK signal of the Mechanical Control Board
HIGH when the printer is in the standby state? NO
Replace the
Mechanical Control
Board.
Replace the motor.
2
Does the REM signal of the Mechanical Control
Board go from HIGH to LOW when the motor is ener-
gized?
YES Replace the motor.
NO
Replace the
Mechanical Control
Board.
Step Check Result Action
1
Does the input signal to the Mechanical Control
Board go from HIGH to LOW when the motor is ener-
gized? (The input signal varies depending on the
direction of rotation.)
YES Replace the motor.
NO
Replace the
Mechanical Control
Board.
4025T526AA
GND
REM
LOCK
2
1
3
4025T525AA