Ricoh FT8880 Service Manual page 99

5 June 1992
SC723 - Finisher Jogger Motor Overload
Definition:
The jogger home position sensor remains actuated after the jogger fences
move inwards, or the jogger home position sensor is not actuated within 1
second after the jogger fences start to move outwards.
Points to check:
•
Mechanical interference with the jogger motor
•
Jogger motor
•
Jogger home position sensor
•
Jogger drive belt
•
Finisher main control PCB
SC725 - Finisher Stapler Drive Motor Overload
Definition:
The stapler unit home position sensor remains actuated after the stapler unit
moves to rear, or the stapler unit home position sensor is not actuated within
5 seconds after the stapler unit starts to return.
Points to check:
•
Mechanical interference with the stapler drive motor
•
Stapler drive motor
•
Stapler unit home position sensor
•
Stapler drive belt
•
Finisher main control PCB
SC741 - Finisher Stack Feed-out Motor Overload
Definition:
The finisher main control PCB cannot detect any pulses from the stack
feed-out motor encoder when the motor is activated.
Points to check:
•
Mechanical interference with the stack feed-out motor
•
Stack feed-out motor
•
Finisher main control PCB
SYSTEM ERROR AND SERVICE CALL CONDITIONS
6-3