• Code: 365-03
• Description: Toner End Sensor upper limit sensor error M
  The Toner End Sensor still indicates that the remaining amount of toner is at the "upper limit", although 30 g or more toner has been consumed.
• Causes: - Stained TE Sensor surface - Failed TE Sensor
• Remedy: • Turn the main power of the printer OFF and then ON. • Check the connector connection. • Clean/replace the sensor (using the same troubleshooting procedure as for LED).

• Code: 365-04
• Description: Toner End Sensor upper limit sensor error Y
  The Toner End Sensor still indicates that the remaining amount of toner is at the "upper limit", although 30 g or more toner has been consumed.
• Causes: - Stained TE Sensor surface - Failed TE Sensor
• Remedy: • Turn the main power of the printer OFF and then ON. • Check the connector connection. • Clean/replace the sensor (using the same troubleshooting procedure as for LED).

• Code: 370-01
• Description: TM(ID) Sensor calibration error (Right)* The specular light output voltage (Vsg_reg) of the Right TM (ID) Sensor cannot be calibrated to a value in the target range. Upper limit (initially 2.97 V) Lower limit (initially 2.31V)
• Causes: - Disconnected TM(ID) Sensor connector/bad contact - Stained TM(ID) Sensor window - Failed TM(ID) Sensor - Image Transfer Belt loosened or out of place
• Remedy: • Check the TM(ID) Sensor • Clean the TM(ID) Sensor Detection window • Check the Image Transfer Belt • Replace the TM(ID) Sensor

• Code: 370-02
• Description: TM(ID) Sensor calibration error (Left)
  The specular light output voltage (Vsg_reg) of the Left TM(ID) Sensor cannot be calibrated to a value in the target range. Upper limit (initially 2.97 V) Lower limit (initially 2.31V)
• Causes: - Disconnected TM(ID) Sensor connector/bad contact - Stained TM(ID) Sensor window - Failed TM(ID) Sensor - Image Transfer Belt loosened or out of place
• Remedy: • Check the TM(ID) Sensor • Clean the TM(ID) Sensor Detection window • Check the Image Transfer Belt • Replace the TM(ID) Sensor

• Code: 396-01
• Description: Drum Motor: K Error
  Early Detection • A command to stop the rotation of the motor has been issued right after the power was turned on, but the motor is still rotating. Motor Operation Timing • When the motor rotation request or speed change request is issued, the motor is in the stopped state. Motor Stop Timing • A command to stop the rotation of the motor has been issued, but the motor is still rotating.
• Causes: - Disconnected connector - Broken signal wire - Excessive motor torque
• Remedy: • Check the connector connection. • Turn the power OFF and then ON. • Replace the Drum Motor: K.

• Code: 396-05
• Description: Drum Motor: CMY error
  Early Detection • A command to stop the rotation of the motor has been issued right after the power was turned on, but the motor is still rotating. Motor Operation Timing • When the motor rotation request or speed change request is issued, the motor is in the stopped state. Motor Stop Timing A command to stop the rotation of the motor has been issued, but the motor is still rotating.
• Causes: - Disconnected connector - Broken signal wire - Excessive motor torque
• Remedy: • Check the connector connection. • Turn the power OFF and then ON. • Replace the Drum Motor: CMY.

• Code: 441-00
• Description: Transfer motor error
  Early Detection • A command to stop the rotation of the motor has been issued right after the power was turned on, but the motor is still rotating. Motor Operation Timing • When the motor rotation request or speed change request is issued, the motor is in the stopped state. Motor Stop Timing A command to stop the rotation of the motor has been issued, but the motor is still rotating.
• Causes: • Disconnected connector • Broken signal wire • Excessive motor torque • Torque of the Image Transfer Unit is too large • Torque of the Waste Toner processing system is too large • Failed Paper Exit Full Sensor
• Remedy: • Check the connector connection • Turn the power OFF and then ON • Replace the Image Transfer Unit Motor. • Replace the Image Transfer Unit • Replace the Waste Toner Duct • Replace the Paper Exit Full Sensor

• Code: 442
• Description: Intermediate transfer contact Sensor error (01: Home position error, 02: Contact error, 03: Non-contact error)
  - Home position error: SC442-01 If the home position is not set within the T4 time after turning ON the feed motor and feed clutch, an error results. - Contact error: SC442-02 If the contact state is not set within the T3 time after turning ON the feed motor and feed clutch, an error results. - Non-contact error: SC442-03 If the non-contact state is not set within the T3 time after turning ON the feed motor and feed clutch, an error results. [Error time T3] SP value: 100 to 25500 ms Initial value: 3000 ms Note: Contact/non-contact error judgment [Error time T4] SP value: 100 to 25500 ms Initial value: 3000 ms Note: Home position error judgment.
• Causes: • High motor load • Failed motor • Disconnected connector • Broken harness wire • PSU: +24 V fuse blown • Failed interlock mechanism • Failed Engine Board
• Remedy: 1. Connect and disconnect the Image Transfer Unit 2. Replace the Image Transfer Unit 3. Replace the Engine Board 4. Replace the ITB (Image Transfer Belt) Contact Clutch 5. Replace the Paper Feed Motor