Brother HL-4000CN - Fail Code List; Level 2 Troubleshooting

V-4
3. LEVEL 2 TROUBLESHOOTING
3.1 Fail Code List
LCD Display < Name of Fail>
Contents of Trouble
Action Reference
BSD
001-360 Turn OFF
the Power.
<IOT Fan Motor Failure>
Fuser fan or rear fan fail signal detected.
Power off/on
See fan motor failure FIP
2.9.3
2.9.6
003-340 Turn OFF
the Power.
<IOT Firmware Error>
IOT firmware error
Power off/on
See firmware error FIP
2 3.1
2 3.3
003-356 Turn OFF
the Power.
<IOT NVRAM Error>
NVRAM error
Power off/on
See NV-RAM error FIP
2 3.1
2 3.3
006-370 Turn OFF
the Power.
<IOT SCANNER Failure>
1. Laser power down.
2. SOS signal not detected.
Power off/on
See SCANNER failure FIP
2.5.1
2.5.2
009-340 Turn OFF
the Power.
<IOT CTD Sensor Error>
ADC sensor ASSY power down.
Power off/on
See CTD sensor error FIP
2.8.7
2.8.8
009-342 Turn OFF
the Power.
<IOT Low Density Error>
Toner density is low.
Power off/on
See low density error FIP
2.8.7
2.8.8
010-317 Turn OFF
the Power.
<IOT Fuser Detached>
Detected that the fuser ASSY is not mounted.
Power off/on
See fuser detached FIP
2.9.1
2.9.6
010-350 Turn OFF
the Power.
<IOT Fuser Failure>
1. Temperature exceeding 235°C detected consecutively 4 times.
2. Temperature below 120°C detected consecutively 4 times.
3. Resistance value of STS sensor over 2437K
Ω
detected
consecutively 4 times.
4. Target temperature is not reached more than 60 seconds after the
fuser lamp lighted up.
5. After the target temperature is reached, the fuser lamp was kept on
for more than specified time.
6. Value of the STS sensor does not change after the lamp lights up.
7. Temperature exceeding 230°C detected during printing process
consecutively twice.
Power off/on
See fuser failure FIP
2.9.1
2.9.6