Ricoh Pro 8320 - Decurl Unit: Decurl Unit Error (HP Sensor Error); Decurl Unit: Decurl Unit Error (Limit Error); Sc581-00; Sc582-00

1.SC Codes
182
SC581-00
Error Name
Decurl Unit: Decurl Unit Error (HP Sensor Error)
Pattern
D
Error Condition
The decurl unit motor does not rotate.
Major Cause
 There is excessive torque on the decurl unit (such as overload due to locked bearing).
 Decurl unit motor connector is disconnected.
 Decurl unit motor (STM29) is defective.
 Harness is damaged.
 DDRB, IOB is defective.
Solution
1. Check if the decurl uni is overloaded. (foreign objects in the unit, bearing locked or stuck)
2. Check the connector of decurl unit motor and the harness of the IOB connector (connector floating
or disconnected)
3. Replace the decurl unit motor (STM29).
4. Replace the harness of the decurl unit motor.
5. Replace the DDRB.
6. Replace the IOB.
SC582-00
Error Name
Decurl Unit: Decurl Unit Error (Limit Error)
Pattern
D
Error Condition
When the limit sensor is detected to be ON.
Major Cause
 There is excessive torque on the decurl unit (such as overload due to locked bearing).
 Sensor connector is disconnected.
 Decurl unit HP sensor (SEN67) / decurl limit sensor (SEN68) is defective.