• Code: 59.70
• Display: 59.X Error
• Description: Black developer motor startup or rotation error.
  - Black developer motor startup error
• Remedy: 1. Reconnect the connector (J517) on the ITB motor and the connector (J81) on the DC controller PCA. 2. Run the ITB motor drive test in the actuator drive mode to verify that the ITB motor is functioning correctly. If it is not, replace the ITB motor unit.

• Code: 59.70
• Display: 59.X Error
• Description: Developing motor abnormal rotation or start-up.
  - Black developer motor startup error
• Remedy: 1. Reconnect the connector (J514) on the developing motor and the connector (J81) on the DC controller PCA. 2. Run the developing motor drive test in the actuator drive mode to verify that the developing motor is functioning correctly. If it is not functioning correctly, replace the developing motor unit.

• Code: 59.71
• Display: 59.X Error
• Description: Developing motor abnormal rotation or start-up.
  - Cyan developer motor startup error
• Remedy: 1. Reconnect the connector (J514) on the developing motor and the connector (J81) on the DC controller PCA. 2. Run the developing motor drive test in the actuator drive mode to verify that the developing motor is functioning correctly. If it is not functioning correctly, replace the developing motor unit.

• Code: 59.72
• Display: 59.X Error
• Description: Developing motor abnormal rotation or start-up.
  - Magenta developer motor startup error
• Remedy: 1. Reconnect the connector (J514) on the developing motor and the connector (J81) on the DC controller PCA. 2. Run the developing motor drive test in the actuator drive mode to verify that the developing motor is functioning correctly. If it is not functioning correctly, replace the developing motor unit.

• Code: 59.73
• Display: 59.X Error
• Description: Developing motor abnormal rotation or start-up.
  - Yellow developer motor startup error
• Remedy: 1. Reconnect the connector (J514) on the developing motor and the connector (J81) on the DC controller PCA. 2. Run the developing motor drive test in the actuator drive mode to verify that the developing motor is functioning correctly. If it is not functioning correctly, replace the developing motor unit.

• Code: 59.80
• Display: 59.X Error
• Description: Black developer motor startup or rotation error.
  - Black developer motor rotation error
• Remedy: 1. Reconnect the connector (J517) on the ITB motor and the connector (J81) on the DC controller PCA. 2. Run the ITB motor drive test in the actuator drive mode to verify that the ITB motor is functioning correctly. If it is not, replace the ITB motor unit.

• Code: 59.80
• Display: 59.X Error
• Description: Developing motor abnormal rotation or start-up.
  - Black developer motor rotation error
• Remedy: 1. Reconnect the connector (J514) on the developing motor and the connector (J81) on the DC controller PCA. 2. Run the developing motor drive test in the actuator drive mode to verify that the developing motor is functioning correctly. If it is not functioning correctly, replace the developing motor unit.

• Code: 59.81
• Display: 59.X Error
• Description: Developing motor abnormal rotation or start-up.
  - Cyan developer motor rotation error
• Remedy: 1. Reconnect the connector (J514) on the developing motor and the connector (J81) on the DC controller PCA. 2. Run the developing motor drive test in the actuator drive mode to verify that the developing motor is functioning correctly. If it is not functioning correctly, replace the developing motor unit.