8-13
Troubleshooting
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
Description
Remedy
Document
Is the lip of the suction cap
dirty?
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.
Clean the
suction cap
"6-2-1. Cleaning the nozzle
guard and suction cap
>>P.6-46"
Is ink accumulated in the
nozzle guard?
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.
Nozzle guard
Cleaning
"6-2-1. Cleaning the nozzle
guard and suction cap
>>P.6-46"
Is there any deposit of ink
around the nozzle
surface?
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.
Cleaning the
surrounding area
of nozzle surface
"6-2-3. Cleaning the
surrounding area of nozzle
surface >>P.6-57"
Is the wiper contaminated?
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.
Introduction of
wiper cleaning
solution
From the menu, select
[Maintenance] -> [Operate
wiper cleaning tank] ->
[Add cleaning solution].
Is the wiper cleaning
solution contaminated?
The wiper may not be sufficiently cleaned
and the nozzle surface may not be wiped
cleanly if the wiper cleaning solution is dirty.
Replacement of
wiper cleaning
solution
From the menu, select
[Maintenance] -> [Operate
wiper cleaning tank] ->
[Change cleaning solution].
Is there any indication of
scar or deformation on the
wiper?
If the wiper has any scar or deformation, the
wiper cannot clean the nozzle surface.
Replace the
wiper
"6-1-6. Replacing the wiper
>>P.6-12"
Is the flushing foam
installed correctly?
If the flushing foam is not placed
appropriately with no rise, it may touch the
nozzle surface to stop ejection from the
nozzle.
Mount the
flushing foam
"6-1-8. Replacing the
flushing foam >>P.6-17"
Is the ink accumulated on
the flushing foam?
If an ink accumulates on the flushing foam,
the ink may touch the nozzle surface to
prevent ink from ejecting.
Replace the
flushing foam
"6-1-8. Replacing the
flushing foam >>P.6-17"
Is the tube correctly
connected to the head?
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.
Verify connection
between the
head and the
tube
"6-1-12. Replacement of
print head >>P.6-32"
Is the tube filled with ink?
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.
Bleed ink air in
the tube
From the menu, select
[Maintenance] > [Tube air
bleed] and select the
corresponding head and
color.
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.
