• Code: E551-0021
• Description: Error in the power supply fan of the paper folding unit. The loch signal is detected for the specified times while the fan operates.
• Remedy: 1. The connector of the fan (F1) is disconnected. 2. The wiring of the fan (F1) is faulty. 3. The fan (F1) is faulty. 4. The paper folding unit controller PCB is faulty.

• Code: E562-8001
• Description: Error in slowing timing sensor (S24) of paper folding unit(Document Insertion / Folding Unit/Paper Folding Unit). The receiving-light intensity failed to be within the threshold although the emitting-light intensity is adjusted to be within the threshold when adjusting the sensor.
• Remedy: 1. Connector of the slowing timing sensor is disconnected 2. Slowing timing sensor is faulty

• Code: E562-8002
• Description: Error in disengagement timing sensor (S21) of paper folding unit(Document Insertion / Folding Unit/Paper Folding Unit). The receiving-light intensity failed to be within the threshold although the emitting-light intensity is adjusted to be within the threshold when adjusting the sensor.
• Remedy: 1. Connector of the disengagement timing sensor is disconnected 2. Disengagement timing sensor is faulty

• Code: E562-8003
• Description: Error in folding position accuracy sensor (S23) of paper folding unit(Document Insertion / Folding Unit/Paper Folding Unit). The receiving-light intensity failed to be within the threshold although the emitting-light intensity is adjusted to be within the threshold when adjusting the sensor.
• Remedy: 1. Connector of the folding position accuracy sensor is disconnected 2. Folding position accuracy sensor is faulty

• Code: E562-8004
• Description: Error in the upper stopper HP sensor (S16) of paper folding unit(Document Insertion / Folding Unit/Paper Folding Unit). The receiving-light intensity failed to be within the threshold although the emitting-light intensity is adjusted to be within the threshold when adjusting the sensor
• Remedy: 1. Connector of the upper stopper HP sensor is disconnected 2. Upper stopper HP sensor is faulty

• Code: E568-8001
• Description: Error in the feed roller disengage/buffer flapper motor(Finisher-A1). The disengage roller does not come off the feed roller separation HP sensor when the feed roller disengage/ buffer flapper motor has been driven for 3sec.
• Remedy: 1. The connector of the feed roller separation HP sensor (S111) or the feed roller disengage/buffer flapper motor (M119) are disconnected. 2. The wiring of the feed roller separation HP sensor (S111) or the feed roller disengage/buffer flapper motor (M119) are faulty. 3. The feed roller separation HP sensor (S111) is faulty. 4. The feed roller disengage/buffer flapper motor (M119) is faulty. 5. The finisher controller PCB is faulty.

• Code: E568-8002
• Description: Error in the feed roller disengage/buffer flapper motor(Finisher-A1). The feed roller separation HP sensor does not detect the disengage roller when the feed roller disengage/buffer flapper motor has been driven for 3sec.
• Remedy: 1. The connector of the feed roller separation HP sensor (S111) or the feed roller disengage/buffer flapper motor (M119) are disconnected. 2. The wiring of the feed roller separation HP sensor (S111) or the feed roller disengage/buffer flapper motor (M119) are faulty. 3. The feed roller separation HP sensor (S111) is faulty. 4. The feed roller disengage/buffer flapper motor (M119) is faulty. 5. The finisher controller PCB is faulty.

• Code: E568-8003
• Description: Error in the feed roller disengage/buffer flapper motor(Finisher-A1). The buffer flapper does not come off the buffer flapper HP sensor when the feed roller disengage/buffer flapper motor has been driven for 3sec.
• Remedy: 1. The connector of the buffer flapper HP sensor (S142) or the feed roller disengage/buffer flapper motor (M119) are disconnected. 2. The wiring of the buffer flapper HP sensor (S142) or the feed roller disengage/buffer flapper motor (M119) are faulty. 3. The buffer flapper HP sensor (S142) is faulty. 4. The feed roller disengage/buffer flapper motor (M119) is faulty. 5. The finisher controller PCB is faulty.