• Code: E503-0004
• Description: A. Communication error (Finisher-E1) B. Communication error with Insertion Unit (Document Insertion Unit-L1) C. Communication error with Insertion Unit (Document Insertion/Folding Unit-H1)
  A. The communication with the Inserter or the Paper Folding Unit is interrupted. B. Failed communication for 3 consecutive times. C. Failed communication for 3 consecutive times.
• Remedy: A-1. The wiring between the Finisher Controller PCB and host machine Controller PCB is faulty. A-2. The Finisher Controller PCB is faulty. A-3. The host machine Controller PCB is faulty. B-1. Inserter Controller PCB is faulty. B-2. Disconnection of communication cable B-3. Connector on the Inserter Controller PCB is disconnected. C-1. Folder Controller PCB is faulty. C-2. Disconnection of communication cable C-3. Connector on the DC Controller PCB is disconnected.

• Code: E505-0001
• Description: Finisher back-up RAM (EEPROM) error (Finisher-D1/E1)
  The checksum for the EEPROM data has an error. (The value written in EEPROM and the value extracted from EEPROM doesn't conform.)
• Remedy: The Finisher Controller PCB is faulty.

• Code: E505-0002
• Description: EEPROM error (External 2 Hole Puncher)
  The checksum for the EEPROM data has an error.
• Remedy: The Punch Controller PCB is faulty.

• Code: E505-0003
• Description: A. EEPROM error with the Insertion Unit (failed data reading/ writing) (Document Insertion Unit-L1) B. EEPROM error with the Insertion Unit (failed data reading/ writing) (Document Insertion/Folding Unit-H1)
  A. The checksum for the EEPROM data has an error. B. Data failed to be read properly.
• Remedy: A. The Insertion Unit Controller PCB is faulty. B. Folder Controller PCB is faulty.

• Code: E514-8001
• Description: Rear end assist home position error (Finisher-E1)
  The stapler does not leave the rear end assist home position when the Rear Eend Assist Motor has been driven for 3 seconds.
• Remedy: 1. The Rear End Assist Home Position Sensor (PI109) is faulty. 2. The wiring between the Finisher Controller PCB and Rear End Assist Motor is faulty. 3. The end assist mechanism is faulty. 4. The Rear End Assist Motor (M109) is faulty. 5. The Finisher Controller PCB is faulty.

• Code: E514-8002
• Description: Rear end assist home position error (Finisher-E1)
  The stapler does not return to the rear end assist home position when the Rear End Assist Motor has been driven for 3 seconds.m.)
• Remedy: 1. The Rear End Assist Home Pposition Sensor (PI109) is faulty. 2. The wiring between the Finisher Controller PCB and Rear End Assist Motor is faulty. 3. The end assist mechanism is faulty. 4. The Rear End Assist Motor (M109) is faulty. 5. The Finisher Controller PCB is faulty.

• Code: E518-8001
• Description: Error in Folding Feed Motor lock (Document Insertion/Folding Unit-H1)
  The Folding Feed Motor (M5) lock signal has been detected for more than the specified time.
• Remedy: 1. Connector of the Folding Feed Motor (M5) is disconnected. 2. Folding Feed Motor (M5) is faulty.

• Code: E519-0002
• Description: Gear change home position error (Finisher-E1)
  The Gear Change Hhome Position Sensor does not turn ON when the Gear Change Motor has been driven for 387 pulses.
• Remedy: 1. The Gear Change Home Position Sensor (PI117) is faulty. 2. The wiring between the Finisher Controller PCB and Gear Change Motor is faulty. 3. The gear change mechanism is faulty. 4. The Gear Change Motor (M110) is faulty. 5. The Finisher Controller PCB is faulty.