Brother MFC9100C Service Manual page 189

Error Code
(Hex)
44 Head thermistor broken.
45 Head thermistor short-circuited.
46 The number of performed purge sequences has reached
the limit.
4B Abnormal carriage travel speed detected when the power
was applied.
4C Head rated voltage data stored in the EEPROM on the
head PCB is invalid.
(This code may appear only in the maintenance mode.)
50 The purge cam HP switch does not come ON even after
the purge cam has been driven by the specified number of
pulses.
51 The purge cam HP switch does not go OFF even after the
purge cam has been driven by the specified number of
pulses.
52 At the time of purge operation, the carriage has not
stopped in the purge position.
53 The purge cam HP switch has come ON when the
carriage was in the wipe position.
54 When reset, the purge cam HP switch does not come ON
even after the purge cam has been driven by the specified
number of pulses.
55 When reset, the purge cam HP switch does not go OFF
even after the purge cam has been driven by the specified
number of pulses.
Error factor
VI - 5
Check:
• Print head unit
• Carriage ASSY
• Main PCB
• Ink absorbers
• Main PCB
• Encoder strip (Any
stains or scratches?
Hooked correctly?)
• Purge unit
• Main chassis
• Carriage ASSY
• Main PCB
• Print head unit
• Main PCB
• Power supply PCB
• Purge unit
• Main chassis
• Paper feed motor
• Main PCB