• Code: E023-0301
• Description: Developing stirring motor (C) error. The lock signal of the developing stirring motor (C) (M27) cannot be detected within a specified period. Connector disconnected, breaking (shorting) Failure of the developing assembly (Sleeve overloaded) Failure of the DC controller interface PCB (Fuse (FU7 burns)) Contact failure of the drawer connector Failure of the developing stirring motor
• Remedy: 1. Check the connection between the developing stirring motor (C) and the DC controller interface PCB (UN2). (Connection of the connector, Breaking (shorting)) Motor side: J7157/J8038 PCB side: J1246 2. Replace the developing assembly (C). 3. Replace the DC controller interface PCB (UN2). 4. Check the contact of the drawer connector (J8031). 5. Replace the developing stirring motor (C).

• Code: E023-0302
• Description: Developing stirring motor (C) error. Lock signal of Developing stirring motor(C)(M27) cannot be detected for the specified time after first detection Connector disconnected, breaking (shorting) Failure of the developing assembly (Sleeve overloaded) Failure of the DC controller interface PCB (Fuse (FU7 burns)) Contact failure of the drawer connector Failure of the developing stirring motor
• Remedy: 1. Check the connection between the developing stirring motor (C) and the DC controller interface PCB (UN2). (Connection of the connector, Breaking (shorting)) Motor side: J7157/J8038 PCB side: J1246 2. Replace the developing assembly (C). 3. Replace the DC controller interface PCB (UN2). 4. Check the contact of the drawer connector (J8031). 5. Replace the developing stirring motor (C).

• Code: E023-0401
• Description: Developing stirring motor (Bk) error. The lock signal of the developing stirring motor (Bk) (M29) cannot be detected within a specified period. Connector disconnected, breaking (shorting) Failure of the developing assembly (Sleeve overloaded) Failure of the DC controller interface PCB (Fuse (FU7 burns)) Contact failure of the drawer connector Failure of the developing stirring motor
• Remedy: 1. Check the connection between the developing stirring motor (Bk) and the DC controller interface PCB (UN2). (Connection of the connector, Breaking (shorting)) Motor side: J7152/J8038 PCB side: J1246 2. Replace the developing assembly (Bk). 3. Replace the DC controller interface PCB (UN2). 4. Check the contact of the drawer connector (J8031). 5. Replace the developing stirring motor (Bk).

• Code: E023-0402
• Description: Developing stirring motor (Bk) error. Lock signal of Developing stirring motor(Bk)(M29) cannot be detected for the specified time after first detection Connector disconnected, breaking (shorting) Failure of the developing assembly (Sleeve overloaded) Failure of the DC controller interface PCB (Fuse (FU7 burns)) Contact failure of the drawer connector Failure of the developing stirring motor
• Remedy: 1. Check the connection between the developing stirring motor (Bk) and the DC controller interface PCB (UN2). (Connection of the connector, Breaking (shorting)) Motor side: J7152/J8038 PCB side: J1246 2. Replace the developing assembly (Bk). 3. Replace the DC controller interface PCB (UN2). 4. Check the contact of the drawer connector (J8031). 5. Replace the developing stirring motor (Bk).

• Code: E025-0100
• Description: Toner container drive motor lock (Y) 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: E025-0102
• Description: Block supply timeout (Y) 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: J7100, J8106 PCB side: J1340 2. Check the connection between the toner feed screw rotation sensor (PS9) and the hopper driver PCB. Sensor side: J7418, J8106 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: E025-0110
• Description: Toner container sealing/release holder shift cam HP sensor timeout (Y) error. HP sensor of release holder shift cam cannot detect within specified time.
• Remedy: 1. Check the connection of the toner container drive motor (M10) harness. (Check whether the wire is not caught by parts.) Check the connection with the hopper driver PCB. Motor side: J7104 PCB side: J1370 2. Check the connection between the release holder shift cam HP sensor (PS8) and the hopper driver PCB. Sensor side: J7123, J8106 PCB side: J1340 3. Replace the toner container drive motor. 4. Clean and replace the release holder shift cam HP sensor. 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: E025-0120
• Description: Toner container/toner container inserting inlet phase (Y) 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 (PS10) and the hopper driver PCB. (Connection of the connector, Breaking, Wire caught by parts) Sensor side: J7122, J8115 PCB side: J1360 3. Check the connection between the release holder shift cam phase sensor (PS81) and the hopper driver PCB. (Connection of the connector, Breaking, Wire caught by parts) Sensor side: J7153 PCB side: J1390 4. Replace the toner container inserting inlet cover open/ close sensor (PS10).