• Code: 1510
• Description: PF heater 2 high temperature error (paper feeder 1)
  A temperature higher than 75C/167F is detected.
• Causes: Defective connector cable or poor contact in the connector. Shorted PF thermistor 2. Defective PF fan motor 2. Defective PF main PWB.
• Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. PF fan motor 2 and PF main PWB (YC111)
  Shorted PF thermistor 2. Replace the side heater unit (Refer to the service manual for the paper feeder).
  Defective PF fan motor 2. Replace the side heater unit (Refer to the service manual for the paper feeder).
  Defective PF main PWB. Replace the PF main PWB (Refer to the service manual for the paper feeder).

• Code: 1520
• Description: PF heater 1 high temperature error (paper feeder 2)
  A temperature higher than 75C/167F is detected.
• Causes: Defective connector cable or poor contact in the connector. Shorted PF thermistor 1. Defective PF fan motor 1. Defective PF main PWB.
• Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. PF fan motor 1 and PF main PWB (YC111)
  Shorted PF thermistor 1. Replace the top heater unit (Refer to the service manual for the paper feeder).
  Defective PF fan motor 1. Replace the top heater unit (Refer to the service manual for the paper feeder).
  Defective PF main PWB. Replace the PF main PWB (Refer to the service manual for the paper feeder).

• Code: 1530
• Description: PF heater 2 high temperature error (paper feeder 2)
  A temperature higher than 75C/167F is detected.
• Causes: Defective connector cable or poor contact in the connector. Shorted PF thermistor 2. Defective PF fan motor 2. Defective PF main PWB.
• Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. PF fan motor 2 and PF main PWB (YC111)
  Shorted PF thermistor 2. Replace the side heater unit (Refer to the service manual for the paper feeder).
  Defective PF fan motor 2. Replace the side heater unit (Refer to the service manual for the paper feeder).
  Defective PF main PWB. Replace the PF main PWB (Refer to the service manual for the paper feeder).

• Code: 1540
• Description: PF heater 1 high temperature error (paper feeder 3)
  A temperature higher than 75C/167F is detected.
• Causes: Defective connector cable or poor contact in the connector. Shorted PF thermistor 1. Defective PF fan motor 1. Defective PF main PWB.
• Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. PF fan motor 1 and PF main PWB (YC111)
  Shorted PF thermistor 1. Replace the top heater unit (Refer to the service manual for the paper feeder).
  Defective PF fan motor 1. Replace the top heater unit (Refer to the service manual for the paper feeder).
  Defective PF main PWB. Replace the PF main PWB (Refer to the service manual for the paper feeder).

• Code: 1550
• Description: PF heater 2 high temperature error (paper feeder 3)
  A temperature higher than 75C/167F is detected.
• Causes: Defective connector cable or poor contact in the connector. Shorted PF thermistor 2. Defective PF fan motor 2. Defective PF main PWB.
• Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. PF fan motor 2 and PF main PWB (YC111)
  Shorted PF thermistor 2. Replace the side heater unit (Refer to the service manual for the paper feeder).
  Defective PF fan motor 2. Replace the side heater unit (Refer to the service manual for the paper feeder).
  Defective PF main PWB. Replace the PF main PWB (Refer to the service manual for the paper feeder).

• Code: 1600
• Description: PF heater 1 low temperature error (paper feeder 1)
  An external temperature higher than + 5C/+ 9F is not detected when one minute elapses after PF heater 1 is turned on.
• Causes: Defective connector cable or poor contact in the connector. PF thermistor 1 installed incorrectly. Defective PF thermistor 1. Broken PF heater 1. Defective PF heater PWB or PF main PWB.
• Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. PF heater 1 and PF heater PWB (YC1) PF heater PWB (YC3) and PF main PWB (YC113) PF thermistor 1 and PF main PWB (YC114)
  PF thermistor 1 installed incorrectly. Check the installation of the PF thermistor 1.
  Defective PF thermistor 1. Replace the top heater unit (Refer to the service manual for the paper feeder).
  Broken PF heater 1. Replace the top heater unit (Refer to the service manual for the paper feeder).
  Defective PF heater PWB or PF main PWB. Replace the PF heater PWB or PF main PWB (Refer to the service manual for the paper feeder).

• Code: 1610
• Description: PF heater 2 low temperature error (paper feeder 1)
  An external temperature higher than + 5C/+ 9F is not detected when one minute elapses after PF heater 2 is turned on.
• Causes: Defective connector cable or poor contact in the connector. PF thermistor 2 installed incorrectly. Defective PF thermistor 2. Broken PF heater 2. Defective PF heater PWB or PF main PWB.
• Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. PF heater 2 and PF heater PWB (YC2) PF heater PWB (YC3) and PF main PWB (YC113) PF thermistor 2 and PF main PWB (YC115)
  PF thermistor 2 installed incorrectly. Check the installation of the PF thermistor 2.
  Defective PF thermistor 2. Replace the side heater unit (Refer to the service manual for the paper feeder).
  Broken PF heater 2. Replace the side heater unit (Refer to the service manual for the paper feeder).
  Defective PF heater PWB or PF main PWB. Replace the PF heater PWB or PF main PWB (Refer to the service manual for the paper feeder).

• Code: 1620
• Description: PF heater 1 low temperature error (paper feeder 2)
  An external temperature higher than + 5C/+ 9F is not detected when one minute elapses after PF heater 1 is turned on.
• Causes: Defective connector cable or poor contact in the connector. PF thermistor 1 installed incorrectly. Defective PF thermistor 1. Broken PF heater 1. Defective PF heater PWB or PF main PWB.
• Remedy: Defective connector cable or poor contact in the connector. Reinsert the connector. Also check for continuity within the connector cable. If none, replace the cable. PF heater 1 and PF heater PWB (YC1) PF heater PWB (YC3) and PF main PWB (YC113) PF thermistor 1 and PF main PWB (YC114)
  PF thermistor 1 installed incorrectly. Check the installation of the PF thermistor 1.
  Defective PF thermistor 1. Replace the top heater unit (Refer to the service manual for the paper feeder).
  Broken PF heater 1. Replace the top heater unit (Refer to the service manual for the paper feeder).
  Defective PF heater PWB or PF main PWB. Replace the PF heater PWB or PF main PWB (Refer to the service manual for the paper feeder).