Brother MFC-3340CN Service Manual page 257
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Also See for MFC-3340CN:
- Manual (231 pages) ,
- Manual de l'utilisateur (233 pages) ,
- User manual (220 pages)
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Error Code
(Hex)
49
The head drive voltage has
not risen to the specified
level.
4A-4E
Not used.
4F
The head drive voltage has
dropped from the high to
low level in an abnormally
short period.
50
The purge cam switch does
51
not come ON or OFF even
after the purge cam has
been driven by the
specified number of pulses.
52
The purge cam switch does
not come ON at each
detection point.
53-56
Not used.
Symptom
9-6
Probable Cause
Head flat cables and
carriage-head flat cable
not connected correctly
Main PCB defective
Power supply PCB
defective
Piezoelectric (PZT)
ceramic actuator
defective (Cracks or
rare short)
Switching arm
assembly not engaged
correctly
Ink cartridge/purge
switch harness not
connected correctly
Purge cam switch
broken
Gear(s) on the
maintenance unit
broken
Paper feed motor
broken
Main PCB defective.
Switching arm
assembly not engaged
correctly
Gear(s) on the
maintenance unit
broken
Abnormal load applied
to the purge cam
Paper feed motor
broken
Main PCB defective
Solution
Correct those flat cables.
Replace the main PCB.
Replace the power
supply PCB.
Replace the
head/carriage unit.
If the switching arm does
not move smoothly,
clean it.
Correct the connection.
Replace the purge cam
switch.
Replace the maintenance
unit.
Replace the paper feed
motor.
Replace the main PCB.
If the switching arm does
not move smoothly,
clean it.
Replace the maintenance
unit.
Replace the paper feed
motor.
Replace the main PCB.
Confidential
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Troubleshooting
