Xerox Phaser 4620

• Code: 03-115-00
• Description: Mailbox Interface Error
• Causes: Communications between the Mailbox and IOT has failed.
• Remedy: • Reseat the Mailbox on the IOT connection. • Check for obstructions or damage to the interface connection.
  Cycle system power. The error message is displayed. Y↓ N→Complete. Remove the Mailbox right cover and check the option harness. The harness is undamaged. Y↓ N→Repair or replace the Mailbox option harness, PL 11.15 Item 4. Check the IOT Upper Option Harness. The harness is undamaged. Y↓ N→Replace the Upper Option Harness. Replace these components in order until the error is corrected. 1. Mailbox Control Board, PL 11.15 Item 1 2. MCU Board, PL 3.10 Item 3

• Code: 03-120-00, 03-940-00
• Description: Tray 3 Communications Fault
• Causes: 03-120-00 A communication error has occurred between the MCU Board and Tray 3. 03-940-00 A communication error has occurred between the MCU Board and Tray 3.
• Remedy: • Lock the feeder to the IOT. • Reseat the IOT on the Feeder. • Check for obstructions blocking the option harness.
  Cycle system power. The error message is displayed. Y↓ N→Complete. Remove the IOT from the Feeder and check the Feeder Option Connector. The connector is undamaged. Y↓ N→Replace the Feeder Upper Option Harness. Check the Lower Option Harness. The harness is undamaged. Y↓ N→Replace the Lower Option Harness. Replace these components in order until the error is corrected. 1. Feeder Board, PL 8.30 Item 7 2. MCU Board, PL 3.10 Item 3

• Code: 03-130-00, 03-950-00
• Description: Tray 4 Communications Fault
• Causes: 03-130-00 A communication error has occurred between the MCU Board and Tray 4. 03-950-00 A communication error has occurred between the MCU Board and Tray 4.
• Remedy: • Lock the feeder to Tray 3. • Reseat the IOT and Tray 3 on the Feeder. • Check for obstructions blocking the option harnesses.
  Cycle system power. The error message is displayed. Y↓ N→Complete. Remove the IOT and Tray 3 from the Feeder. Check feeder option harness continuity. The harnesses are undamaged. Y↓ N→Replace the damaged option harness. Check the IOT option connector. The harness is undamaged. Y↓ N→Replace the Lower Option Harness. Replace these components in order until the error is corrected. 1. Feeder Board, PL 8.30 Item 7 2. MCU Board, PL 3.10 Item 3

• Code: 03-140-00, 03-960-00
• Description: Tray 5 Communications Fault
• Causes: 03-140-00 A communication error has occurred between the MCU Board and Tray 5. 03-960-00 A communication error has occurred between the MCU Board and Tray 5.
• Remedy: • Lock the feeder to Tray 5. • Reseat the IOT, Tray 3, and Tray 4 on the Feeder. • Check for obstructions blocking the option harnesses.
  Cycle system power. The error message is displayed. Y↓ N→Complete. Remove the IOT, Tray 3, and Tray 4 from the Feeder. Check feeder option harness continuity. The harnesses are undamaged. Y↓ N→Replace the damaged option harness. Check the IOT option harness. The harness is undamaged. Y↓ N→Replace the Lower Option Harness. Replace these components in order until the error is corrected. 1. Feeder Board, PL 8.30 Item 7 2. MCU Board, PL 3.10 Item 3

• Code: 03-150-00, 03-965-00
• Description: Tray 6 Communications Fault
• Causes: 03-150-00 A communication error has occurred between the MCU Board and Tray 6. 03-965-00 A communication error has occurred between the MCU Board and Tray 6.
• Remedy: • Lock the feeder to Tray 6. • Reseat the IOT, Tray 3, Tray 4, and Tray 5 on the Feeder. • Check for obstructions blocking the option connections.
  Cycle system power. The error message is displayed. Y↓ N→Complete. Remove the IOT, Tray 3, Tray 4, and Tray 5 from the Feeder. Check feeder option connector continuity. The harnesses are undamaged. Y↓ N→Replace the damaged option harness. Check the IOT option connector. The harness is undamaged. Y↓ N→Replace the Lower Option Harness. Replace these components in order until the error is corrected. 1. Feeder Board, PL 8.30 Item 7 2. MCU Board, PL 3.10 Item 3

• Code: 03-160-00, 03-990-00
• Description: HCF Communications Fault
• Causes: 03-160-00 A communication error has occurred between the MCU Board and the HCF. 03-990-00 A communication error has occurred between the MCU Board and the HCF.
• Remedy: • Lock the feeder to the HCF. • Reseat the IOT, Tray 3, Tray 4, on the HCF. • Check for obstructions blocking the option connections.
  Cycle system power. The error message is displayed. Y↓ N→Complete. Remove the IOT and installed feeders from the HCF. Check the HCF option harness. The harness is undamaged. Y↓ N→Replace the damaged option harness. Check feeder option harness continuity for all feeders. The harnesses are undamaged. Y↓ N→Replace the damaged option harness. Check the IOT Lower Option Harness. The harness is undamaged. Y↓ N→Replace the Lower Option Harness. Replace these components in order until the error is corrected. 1. HCF Control Board, PL 7.25 Item 18 2. MCU Board, PL 3.10 Item 3