Ricoh FT5535 Service Manual page 254

E356: TD sensor lower limit detection abnormal
- Definition - [D]
TD sensor output falls below than 0.3 volts during copy cycles.
- Possible Causes -
•
TD sensor defective
•
Main control board defective
•
Toner supply system defective
•
TD sensor connector is disconnected.
E405: Transfer belt/drum charge roller position abnormal
- Definition - [B]
The transfer belt contact home position sensor is not activated.
- Possible Causes -
•
Transfer belt contact home position sensor defective
•
Transfer belt contact clutch defective
•
Main control board defective
E440: Main motor lock
- Definition - [B]
A main motor lock signal is detected.
- Possible Causes -
•
Too much load on the drive mechanism
•
Main motor defective or poor connection
•
Main motor control board defective
•
Main control board defective
E442: Drum charge thermistor abnormal
- Definition - [D]
The temperature detected by the drum charge thermistor drops below
0 °C or rises above 100 °C.
- Possible Causes -
•
Drum charge thermistor open
•
Main control board defective
FSM
CÓPIA NÃO CONTROLADA
6-35
CÓPIA NÃO CONTROLADA
A156/A160/A162