Recovery Action To Be Taken For Such A Nozzle That Is Unable To Eject Ink-Jet Droplets - Brother GTX600NB Instruction Manual

8-2-1. Recovery action to be taken for such a nozzle that is unable to eject ink-jet droplets

Please verify the followings when any nozzle is not ejecting ink droplets.
Items to be checked
Is the lip of the suction cap
dirty?
Is ink accumulated in the
nozzle guard?
Is there any deposit of ink
around the nozzle
surface?
Is the wiper contaminated?
Is the wiper cleaning
solution contaminated?
Is there any indication of
scar or deformation on the
wiper?
Is the flushing foam
installed correctly?
Is the ink accumulated on
the flushing foam?
Is the tube correctly
connected to the head?
Is the tube filled with ink?
After carrying out appropriate remedial measures listed above, make sure the non-firing nozzle has been recovered. If it
has not, perform the steps 1 to 5 to recover the non-firing nozzle.
Description
If the lip of the suction cap is dirty, the
suction cap may not be able to adhere to the
print head, and ink may not be sucked.
The suction cap may not be in close contact
with the print head and ink may not be
sucked if the space between the nozzle
guard and the nozzle is contaminated.
When the surrounding area of nozzle
surface is contaminated, it could lead to
ejection failure since the wiper cannot clean
the nozzle surface properly. Or, it could
reduce the adhesion between the nozzle
and suction cap, thereby causing ink suction
failure.
The wiper may become dirty, and the nozzle
surface may not be wiped cleanly if the
wiper cleaning solution is not sufficiently
filled in the wiper cleaning tank.
The wiper may not be sufficiently cleaned
and the nozzle surface may not be wiped
cleanly if the wiper cleaning solution is dirty.
If the wiper has any scar or deformation, the
wiper cannot clean the nozzle surface.
If the flushing foam is not placed
appropriately with no rise, it may touch the
nozzle surface to stop ejection from the
nozzle.
If an ink accumulates on the flushing foam,
the ink may touch the nozzle surface to
prevent ink from ejecting.
If they are loosely mated, it may allow air to
enter into the head section during the head
cleaning operation, to cause non-ejection
condition of the nozzle.
If a large amount of air exists in the tube, that
air will go into the head to cause
non-ejection condition of the nozzle.
Remedy
Clean the
suction cap
Nozzle guard
Cleaning
Cleaning the
surrounding area
of nozzle surface
Introduction of
wiper cleaning
solution
Replacement of
wiper cleaning
solution
Replace the
wiper
Mount the
flushing foam
Replace the
flushing foam
Verify connection
between the
head and the
tube
Bleed ink air in
the tube
8-13
Troubleshooting
Document
"6-2-1. Cleaning the nozzle
guard and suction cap
>>P.6-46"
"6-2-1. Cleaning the nozzle
guard and suction cap
>>P.6-46"
"6-2-3. Cleaning the
surrounding area of nozzle
surface >>P.6-57"
From the menu, select
[Maintenance] -> [Operate
wiper cleaning tank] ->
[Add cleaning solution].
From the menu, select
[Maintenance] -> [Operate
wiper cleaning tank] ->
[Change cleaning solution].
"6-1-6. Replacing the wiper
>>P.6-12"
"6-1-8. Replacing the
flushing foam >>P.6-17"
"6-1-8. Replacing the
flushing foam >>P.6-17"
"6-1-12. Replacement of
print head >>P.6-32"
From the menu, select
[Maintenance] > [Tube air
bleed] and select the
corresponding head and
color.