Brother MFC845CW Manual De Servicio página 96

Error Code
(Hex)
The tube pump rotates
54
abnormally.
55
56
Not used
57
Alter a purging operation,
the head/carriage unit will
not return to the home
position (capping
position)
Symptom
Foreign materials in the
machine
Clutch gear broken
PF encoder disk being in
contact with the upper
cover and deformed.
PF encoder PCB defective
Main drain tube bent
Purge cam gear broken
Abnormal load applied to
the purge cam.
Planetary arm assembly
broken
Main PCB defective
Power supply PCB
defective
Paper feed motor defective
PF roller gear L broken
Head cap unit, head
wiper or other parts on
the maintenance unit
interfering with the
head/carriage unit
CR encoder strip stained
Any obstacles on the
travel path of the
dead/carriage unit
Carriage motor defective
Head/carriage unit
Main PCB defective
Power supply PCB defective
4-9
Probable Cause
defective
Solution
Remove foreign materials
Replace the clutch gear
Replace the PF encoder
Disk
Replace the PF encoder
PCB
Replace the main drain tube
Replace the maintenance
unit
Replace the maintenance
unit
Replace the main PCB
Replace the power supply
PCB
Replace the paper feed
,motor
Replace the engine unit
Set the parts back into
place
If any part on the
maintenance unit does not
operate smoothly, replace
the unit
Clean the CR encoder strip
Clean the CR guide rail
and CR support chassis.
Replace the carriage motor
Replace the head/carriage
Unit
Replace the main PCB
Replace the power supply
PCB
Confidencial