Importante - Brother MFC845CW Manual De Servicio

[ 2 ] Mensaje de Error "MACHINE ERROR 4F"
El mensaje de error "MACHINE ERROR 4F" aparece si el voltaje de la unidad de disco del cabezal baja
a un nivel anormalmente bajo, durante un corto período de tiempo. La fuente de este problema es la unidad
del cabezal/carro o el PCB principal (Main PCB).
Check
Head/carriage unit
Main PCB
Power supply PCB
[ 3 ] Problemas relacionados con la tinta
Problemas de esta naturaleza pueden surgir no solamente por el funcionamiento defectuoso de la máquina, sino por
acciones del usuario.
IMPORTANTE: En muchos casos, el usuario no coloca bien el cartucho de tinta
Problemas que surgen por la acción del usuario
Check
Ink cartridges
Data setting required
after replacement
Possible causes
- The carriage-head flat cable is
disconnected from the carriage
PCB
- Piezoelectric ceramic actuator
defective. (Cracks or rare chort)
- A power failure when the machine
was in operation resulted in a
damaged part.
- Voltage detection circuit
defective
- The drive voltage and current supplied
are too low to drive the head/carriage unit
Possible causes
- Ink cartridges are not inserted fully into
the ink refill ASSY
- One or more of the ink cartridges
are not loaded.
- One or more of the ink cartridges has
run out of ink.
The related ink dot counter(s) was not
reset after replacement of ink
cartridge(s).
4-37
Problems that may result
At the start of the printing or head
cleaning operation, correct
voltage will not be applied to
the electrodes on the surface of
the piezoelectric ceramic
actuator (Described in Chapter 3,
Section 3.2.2.1).
The head drive voltage drops
from the high to low level in an
abnormally short period.
The head drive voltage becomes
too high or low.
The head drive voltage drops
from the high to low level in an
abnormally short period.
The head drive voltage becomes too
high or low.
Problems that may result
The machine will not be able to print
After the machine is used for a
while, the "EMPTYINK XX"
message will appear and the
machine will no longer be able to
print.
Confidencial