• Code: C-3801
• Description: Fusing main sensor low temperature abnormality.
  - While in the idle or in the low power mode, the fusing heater lamp /1 (L2) turns on for more than 12 seconds in succession.
• Causes: Thermistor /1 (TH1) Printer control board (PRCB) DC power supply (DCPS)

• Code: C-3802
• Description: Fusing main sensor low temperature abnormality.
  - While in other than the warm-up, the thermistor /1 (TH1) detects a temperature lower than 130 °C for more than 10 seconds.
• Causes: Thermistor /1 (TH1) Printer control board (PRCB) DC power supply (DCPS)

• Code: C-3803
• Description: Fusing main sensor low temperature abnormality.
  - The detection temperature of the thermistor /1 (TH1) does not get to the prescribed temperature within a specified period of time after it starts the warm-up.
• Causes: Thermistor /1 (TH1) Printer control board (PRCB) DC power supply (DCPS)

• Code: C-3804
• Description: Fusing sub sensor low temperature abnormality.
  - While in the idle, the fusing heater lamp /2 (L3) turns on for more than 12 seconds in succession.
• Causes: Thermistor /2 (TH2) Printer control board (PRCB) DC power supply (DCPS)

• Code: C-3805
• Description: Fusing sub sensor low temperature abnormality.
  - While in other than the warm-up, the thermistor /2 (TH2) detects a temperature lower than 130 °C for more than 10 seconds.
• Causes: Thermistor /2 (TH2) Printer control board (PRCB) DC power supply (DCPS)

• Code: C-3806
• Description: Fusing sub sensor low temperature abnormality.
  - The detection temperature of the thermistor /2 (TH2) does not get to the prescribed temperature within a specified period of time after it starts the warm-up.
• Causes: Thermistor /2 (TH2) Printer control board (PRCB) DC power supply (DCPS)

• Code: C-3807
• Description: Fusing main sensor high temperature abnormality (sub CPU detection)
  - In the sub CPU, the thermistor /1 (TH1) detects a temperature higher than 236 °C for more than a specified period of time.
• Causes: Thermistor /1 (TH1) Printer control board (PRCB) DC power supply (DCPS)

• Code: C-3808
• Description: Fusing sub sensor high temperature abnormality (sub CPU detection)
  - In the sub CPU, the thermistor /2 (TH2) detects a temperature higher than 236 °C for more than a specified period of time.
• Causes: Thermistor /2 (TH2) Printer control board (PRCB) DC power supply (DCPS)