• Code: E551-0011
• Description: Error in the Power Supply Fan of the Insertion 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 Insertion Unit Controller PCB is faulty.

• 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 (Paper Folding Unit-H1). 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 (S30) is disconnected. 2. Slowing Timing Sensor (S30) is faulty.

• Code: E562-8002
• Description: Error in Disengagement Timing Sensor (Paper Folding Unit-H1). 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 (S31) is disconnected. 2. Disengagement Timing Sensor (S31) is faulty.

• Code: E562-8003
• Description: Error in Folding Position Accuracy Sensor (Paper Folding Unit-H1). 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 (S32) is disconnected. 2. Folding Position Accuracy Sensor (S32) is faulty.

• Code: E562-8004
• Description: Error in the Upper Stopper HP Sensor (Paper Folding Unit-H1). 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 (S23) is disconnected. 2. Upper Stopper HP Sensor (S23) is faulty.

• Code: E568-8001
• Description: Error in the Feed Roller Disengage/Buffer Flapper Motor (Finisher-D1). 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 3 seconds.
• 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-D1). The Feed Roller Separation HP Sensor does not detect the disengage roller when the Feed Roller Disengage/Buffer Flapper Motor has been driven for 3 seconds.
• 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.