• Code: 004-345
• Description: HVPS Communication Error Communication failure between the ESS/MCU PWB and the HVPS was detected.
• Remedy: 1. Turn the power OFF and ON. 2. Turn OFF the power and check the connection between the HVPS J500 and the ESS/ MCU PWB J402 for open circuit, short circuit, and poor contact. 3. If no problem is found, replace the following parts in sequence: • HVPS (PL 18.3) • ESS/MCU PWB (PL 18.3)

• Code: 005-122
• Description: DADF Simplex/Side 1 Pre Regi Sensor On Jam • After Pre-Feed started for the first sheet (DADF Feed Motor On (CW)) in Simplex and Duplex, the DADF Pre Regi Sensor did not turn ON within the specified time. • After Pre-Feed started for the second sheet onwards (DADF Feed Motor On (CW)) in Duplex, the DADF Pre Regi Sensor did not turn ON within the specified time.
• Remedy: Check the following: • Transportation failure due to foreign substance on the document path. • The surface of the Feed Roll and Nudger Roll for foreign substances. • The surface of the Feed Roll and Nudger Roll for wear. • The DADF Pre Regi Sensor (Input Check [005-206]) for operation failure. (PL 56.14) • The DADF Feed Clutch (Output Check [005-062]) for operation failure. (PL 56.7) • The DADF Feed Motor (Output Check [005-008]) for operation failure. (PL 56.6) • The Drive Gear for wear and damage. If no problem is found, replace the DADF PWB. (PL 56.2)

• Code: 005-123
• Description: DADF Simplex/Side 1 Regi Sensor On Jam The DADF Regi Sensor does not turn ON within the specified time after the DADF Pre Regi Sensor On.
• Remedy: Check the following: • Transportation failure due to foreign substance on the document path. • The surface of the Takeaway Roll and Regi Roll for foreign substances. • The surface of the Takeaway Roll and Regi Roll for wear. • The DADF Regi Sensor (Input Check [005-110]) for operation failure. (PL 56.14) • The DADF Pre Regi Sensor (Input Check [005-206]) for operation failure. (PL 56.14) • The DADF T/A Clutch (Output Check [005-098]) for operation failure. (PL 56.7) • The DADF Feed Motor (Output Check [005-008]) for operation failure. (PL 56.6) • The Drive Gear for wear and damage. If no problem is found, replace the DADF PWB. (PL 56.2)

• Code: 005-125, 005-145
• Description: DADF Regi Sensor Off Jam/ DADF Regi Sensor Off Jam on Inverting [DADF Regi Sensor Off Jam] After the DADF Pre Regi Sensor turned OFF at Scan operation, the DADF Regi Sensor did not turn OFF within the specified time. [DADF Regi Sensor Off Jam on Inverting] After the DADF Pre Regi Sensor turned OFF at Invert operation, the DADF Regi Sensor did not turn OFF within the specified time.
• Remedy: Check the following: • Transportation failure due to foreign substance on the document path. • The surface of the Regi Roll, Out Roll, and Exit Roll for foreign substances. • The surface of the Regi Roll, Out Roll, and Exit Roll for wear. • The DADF Regi Sensor (Input Check [005-110]) for operation failure. (PL 56.14) • The DADF Pre Regi Sensor (Input Check [005-206]) for operation failure. (PL 56.14) • The DADF Feed Motor (Output Check [005-008]) for operation failure. (PL 56.6) • The Drive Gear for wear and damage. If no problem is found, replace the DADF PWB. (PL 56.2)

• Code: 005-131, 005-132
• Description: DADF Invert Sensor On Jam on Inverting/ DADF Invert Sensor On Jam [DADF Invert Sensor On Jam on Inverting] After the DADF Regi Sensor turned ON at Invert operation, the DADF Invert Sensor did not turn ON within the specified time. [DADF Invert Sensor On Jam] After the DADF Regi Sensor turned ON in the Scan operation, the DADF Invert Sensor did not turn ON within the specified time.
• Remedy: Check the following: • Transportation failure due to foreign substance on the document path. • The surface of the Out Roll for foreign substances. • The surface of the Out Roll for wear • The DADF Invert Sensor (Input Check [005-211]) for operation failure. (PL 56.10) • The DADF Regi Sensor (Input Check [005-110]) for operation failure. (PL 56.14) • The DADF Feed Motor (Output Check [005-008]) for operation failure. (PL 56.6) • The Drive Gear for wear and damage. If no problem is found, replace the DADF PWB. (PL 56.2)

• Code: 005-134, 005-139
• Description: DADF Invert Sensor Off Jam on Inverting/ DADF Invert Sensor Off Jam [DADF Invert Sensor Off Jam on Inverting] During the Invert operation where there is a next document, after the DADF Regi Sensor turned OFF, the DADF Invert Sensor did not turn OFF within the specified time. [DADF Invert Sensor Off Jam] During the Simplex and Duplex Scan operation, after the DADF Regi Sensor turned OFF, the DADF Invert Sensor did not turn OFF within the specified time.
• Remedy: Check the following: • Transportation failure due to foreign substance on the document path. • The surface of the Out Roll and Exit Roll for foreign substances. • The surface of the Out Roll and Exit Roll for wear. • The DADF Invert Sensor (Input Check [005-211]) for operation failure. (PL 56.10) • The DADF Regi Sensor (Input Check [005-110]) for operation failure. (PL 56.14) • The DADF Feed Motor (Output Check [005-008]) for operation failure. (PL 56.6) • The Exit Pinch Roll for operation failure (including for the operation failure of the Exit Nip Release Solenoid (Output Check [005-072])). (PL 56.7) • The Drive Gear for wear and damage. If no problem is found, replace the DADF PWB. (PL 56.2)

• Code: 005-135
• Description: DADF Side 2 Pre Regi Sensor On Jam After the DADF Feed Motor started the reverse rotation at Invert operation, the DADF Pre Regi Sensor did not turn ON within the specified time.
• Remedy: Check the following: • Transportation failure due to foreign substance on the document path. • The surface of the Exit Roll for foreign substances. • The surface of the Exit Roll for wear • The DADF Pre Regi Sensor (Input Check [005-206]) for operation failure. (PL 56.14) • The DADF Feed Motor (Output Check [005-048]) for operation failure. (PL 56.6) • The Exit Pinch Roll for operation failure (including for the operation failure of the Exit Nip Release Solenoid (Output Check [005-072])). (PL 56.7) • The Drive Gear for wear and damage. If no problem is found, replace the DADF PWB. (PL 56.2)

• Code: 005-136
• Description: DADF Side 2 Regi Sensor On Jam After the DADF Pre Regi Sensor turned ON at Invert operation, the DADF Regi Sensor did not turn ON within the specified time.
• Remedy: Check the following: • Transportation failure due to foreign substance on the document path. • The surface of the Exit Roll, Takeaway Roll, and Regi Roll for foreign substances. • The surface of the Exit Roll, Takeaway Roll, and Regi Roll for wear. • The DADF Regi Sensor (Input Check [005-110]) for operation failure. (PL 56.14) • The DADF Pre Regi Sensor (Input Check [005-206]) for operation failure. (PL 56.14) • The DADF Feed Motor (Output Check [005-008]) for operation failure. (PL 56.6) • The DADF T/A Clutch (Output Check [005-098]) for operation failure. (PL 56.7) • The Exit Pinch Roll for operation failure (including for the operation failure of the Exit Nip Release Solenoid (Output Check [005-072])). (PL 56.7) • The Drive Gear for wear and damage. If no problem is found, replace the DADF PWB. (PL 56.2)