Sc590-04; Stepper Motor Error (Edrb Board) - Ricoh Pro 8300S Troubleshooting Manual

1.SC Codes
Major Cause
Connector is not connected properly.

Motor is defective.

 Control board is defective.
Harness between the board and the motor is defective.

Motors:
PTR Separation Motor (STM3)

Belt Centering Motor (STM2)

Solution
Be careful not to bend the pins of the connector.
1. Locate the failed motor using Output Check.
(Continue to the next step even if you can not find the motor.)
2. Check the connection.
Reconnect the connectors (TDRB, IOB, corresponding motor).
3. Replace the motor.
4. Replace the TDRB.
5. Replace the IOB.
6. Replace the harness between the IOB, the TDRB, and the motor.

SC590-04

Error Name

Stepper Motor Error (EDRB Board)

Pattern
D
Error Condition
The stepper motor controlled by the EDRB has failed.
(This SC is not detected if the front door is open.)
Major Cause
Connector is not connected properly.

Motor is defective.

 Control board is defective.
Harness between the board and the motor is defective.

Motors:
Exit Junction Gate Motor (STM27)

Exit/Invert Separation Motor (STM26)

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