Fuser Temperature Exceeds Its Lower Limit (Center Thermistor); Fuser Temperature Does Not Rise - Brother DCP-8070D Service Manual

■ Error code 6A
Print Unable 6A
Turn the power off and then back on again.
Fuser temperature does not reach 60°C within the specified time (center thermistor)
Error code 6B
Print Unable 6B
Turn the power off and then back on again.
Fuser temperature does not reach 100°C within the specified time (center thermistor)
Error code 6C
Print Unable 6C
Turn the power off and then back on again.
Fuser temperature exceeds its higher limit (center thermistor)
Error code 6D
Print Unable 6D
Turn the power off and then back on again.

Fuser temperature exceeds its lower limit (center thermistor)

Error code 6E
Print Unable 6E
Turn the power off and then back on again.
Fuser temperature does not rise (center thermistor)
Error code 6F
Print Unable 6F
Turn the power off and then back on again.
Hardware detects extremely high temperature of the center or side thermistors
Step
1 Fuser unit failure
2 Main PCB failure
Cause
3-19
Remedy
Replace the fuser unit.
Replace the main PCB ASSY.
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