Brother MFC845CW Manual De Servicio página 94

Error Code
Symptom
(Hex)
The number of performed
46
purge sequences has reached
the limit
The ink absorber box may
be filled with drained ink
The number of flushing
Operations has reached the
Limit
The flushing box may be
filled with drained ink
47
Not used
48
Weak connection of the
head flat cables.
49
The head drive voltage has
not risen to the specified
level.
Not used
4A-4E
4F
The head drive voltage has
dropped from the high to
low level in an abnormally
short period.
The head drive voltage has
not risen to the specified
level within the specified
period in the self-
diagnosis
Probable Cause
Purge corner overflown
Flushing counter
overflown
Head flat cables or
Carriage-head flat cable
broken or not connected.
Head flat cables and
carriage-head flat cable
not connected correctly
Head/carriage unit
defective
Main PCB defective
Power supply PCB
defective
Piezoelectric ceramic
actuator defective
(Cracks or rare short)
Main PCB defective
Power supply PCB
defective
4-7
Solution
Replace both the ink
absorber box and
flushing box and reset
their counters. (When
you need to replace the
Ink absorber box or
Flushing box, replace
both).
Correct the connection of
the head flat cables.
Replace the carriage
PCB ASSY.
Replace the
head/carriage unit.
Correct those flat cables
Replace the head/carriage
unit.
Replace the main PCB
Replace the power supply
PCB
Replace the head/carriage
unit
Replace the main PCB
Replace the power supply
PCB.
Confidencial