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Hitachi IJ UX Service Manual page 181

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Symptom
Probable cause
The supply
pump
malfunctions.
The solenoid
Charging or
valve
drainage is
malfunctions.
impossible.
The
circulation
route clogs.
During Ink
Refill, the
message
"Failure
was
It takes too
detected in
long to supply
level
ink or
sensor,
makeup to
pump, or
the main ink
solenoid
tank.
valve" is
displayed
on the
screen.
Check method
Follow the same descriptions as those of "Ink does not eject".
When "Open" is
executed on
"Solenoid
* MV6
Valve/Pump Test"
malfunctions.
screen, no
operation sound is
produced.
Clogging in
In cases other than
the pipe or
two cases above.
joint
When "Operated" of
pump and then
"Open" of MV1 and
Ink supply
MV6 are executed
pump is
on "Solenoid valve /
clogged.
pump test" screen,
the ink does not
flow.
When "Open" is
executed on
* MV2
"Solenoid
malfunctions
Valve/Pump Test"
.
screen, no
operation sound is
produced.
When "Open" is
executed on
* MV7
"Solenoid
malfunctions
Valve/Pump Test"
.
screen, no
operation sound is
produced.
Refer to "6.2.8
The initial
Makeup
level can not
Replenishment
be detected.
Timeout".
Check the
Full of air in
circulation line M
the tubes.
with eyes.
Check if the
warning message,
Ink or makeup
"Ink Low Warning"
in each
or "Makeup Low
reservoir is in
Warning" is
short supply.
displayed on the
screen.
4-48
Repairing method
Replace or repair the
solenoid valve (MV6).
Refer to "4.15
Repairing method when
the circulation route is
dry or sticks".
Refer to "4.15
Repairing method when
the circulation route is
dry or sticks".
Refer to "4.15
Repairing method when
the circulation route is
dry or sticks".
Replace or repair the
solenoid valve (MV2).
Refer to "4.15
Repairing method when
the circulation route is
dry or sticks".
Replace or repair the
solenoid valve (MV7).
Refer to "4.15
Repairing method when
the circulation route is
dry or sticks".
-
Execute the Ink refill
again.
Replenish ink or
makeup and restart.
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