• Code: E025-0400
• Description: Toner bottle motor lock (Bk) error. Overcurrent of the toner container drive motor was detected.
• Remedy: 1. Check whether a toner container of a different model is not installed. If it is installed, replace it with a correct one. 2. Check the connection of the toner container drive motor (M7/M10/M13/M16). (Check whether the wire is not caught by parts.) 3. Replace the toner container drive motor (M7/M10/M13/ M16). 4. Replace the toner container tray unit (when this error occurred at rotation of the toner container). 5. Replace the hopper unit. Points to note: When this error occurred because a toner container of a different model was installed, remove the toner container following the procedures shown below. 1) Open the toner container installation inlet cover. 2) Manually turn the container in an counterclockwise direction until it is fully turned. 3) Rotate the toner container in an counterclockwise direction using a toner container removing tool. 4) The toner container is placed at the position where it can be removed. Remove the toner container.

• Code: E025-0402
• Description: Block supply timeout (Bk) error. The toner supply screw rotation sensor cannot detect rotation of the screw.
• Remedy: 1. Check the connection between the hopper/stirring supply motor (M6) and the hopper driver PCB. Motor side: J7103, J8040 PCB side: J1340 2. Check the connection between the toner feed screw rotation sensor (PS9) and the hopper driver PCB. Sensor side: J7417, J8040 PCB side: J1340 3. Replace the hopper/stirring supply motor. 4. Clean and replace the toner feed screw rotation sensor. 5. Replace the toner supply pipe unit. 6. Replace the hopper unit. Points to note: Remedies 5 and 6 are taken when the motor is overloaded due to toner adhesion in the unit or gear interlocking failure, etc. Since it is difficult to identify the cause, it is recommended to replace the unit.

• Code: E025-0410
• Description: Toner container sealing/release holder shift cam HP sensor timeout (Bk) error. HP sensor of release holder shift cam cannot detect within specified time.
• Remedy: 1. Check the connection of the toner container drive motor (M7) harness. (Check whether the wire is not caught by parts.) Check the connection with the hopper driver PCB. Motor side: J7107, J8041 PCB side: J1370 2. Check the connection between the release holder shift cam HP sensor (PS8) and the hopper driver PCB. Sensor side: J7139, J8040 PCB side: J1340 3. Clean and replace the toner feed screw rotation sensor. 4. Replace the hopper/stirring supply motor. 5. Replace the hopper unit. Points to note: As for Remedy 5, since it is difficult to identify the cause, it is recommended to replace the unit.

• Code: E025-0420
• Description: Toner container/toner container inserting inlet phase (Bk) error. When the power was turned on, it was detected that the toner container cap was opened (the release holder shift cam phase sensor was protected against light) AND the toner container inserting inlet cover was opened (the toner container inserting inlet cover open/close sensor was transmissive).
• Remedy: 1. Close the toner container inserting inlet cover and turn OFF/ON the power. 2. Check the connection between the toner container inserting inlet cover open/close sensor (PS7) and the hopper driver PCB. (Connection of the connector, Shorting, Wire caught by parts) Sensor side: J7138, J8115 PCB side: J1360 3. Check the connection between the release holder shift cam phase sensor (PS82) and the hopper driver PCB. (Connection of the connector, Shorting, Wire caught by parts) Sensor side: J7154, J8041 PCB side: J1370 4. Replace the toner container inserting inlet cover open/ close sensor (PS7).

• Code: E032-0001
• Description: Counter of NE controller is not working. Disconnection of the count pulse signal is detected
• Remedy: Cable disconnection

• Code: E061-0001
• Description: Primary charging bias (Bk) lower limit error. At initial rotation, the drum surface potential Vd at potential control is less than 30V. Primary charging bias (Bk) is not properly applied. The drum does not rotate correctly.
• Remedy: 1. Check whether the primary charging assembly is properly installed or connected. (Connection of the connector, Shorting, Wire caught by parts) 2. Check whether the primary charging high-voltage PCB (Bk) is properly installed or connected. (Connection of the connector, Shorting, Wire caught by parts) 3. Check whether the drum motor (Bk) is properly installed or connected. (Connection of the connector, Shorting, Wire caught by parts) 4. Replace the parts. Primary charging assembly Primary charging high-voltage PCB (Bk) Drum/ITB drive motor DC controller interface PCB DC controller PCB

• Code: E061-0002
• Description: Potential sensor offset adjustment error. When the result of potential sensor offset adjustment is more than +/-30V.
• Remedy: 1. Check whether the potential sensor offset adjustment tool is properly installed. 2. Replace the potential sensor.

• Code: E061-0003
• Description: Potential control Vd failure. At the time of measurement of Vd at potential control, the value is more than +50V or less than -200V against Vgrid. Drum cleaning pre-exposure is not performed correctly. Primary charging is not performed correctly. The drum is reaching the end of life.
• Remedy: 1. Check the connection of the drum cleaning preexposure LED. 2. Check the connection of the primary charging assembly. Check whether the grid plate is properly installed. Check whether the shield plate is not soiled by toner. => Clean the shield plate. Check whether disconnection of the connector or shorting does not occur or the wire is not caught by parts. 3. Replace the parts. Drum cleaning pre-exposure LED Primary charging assembly Drum (Checking can be performed by DISPLAY>DPOT>D-CUNT-K. Estimated life is 150,000 or less.)