Hitachi IJ PH Service Manual page 117

Symptom Probable cause
The supply
pump
malfunctions.
The solenoid
Charging or
valve
drainage is
malfunctions.
impossible.
The
circulation
route clogs.
When the
message
"Failure
was It takes too
detected in long that the
level ink or the
sensor, makeup ink is
pump, or supplied to
solenoid the main ink
valve" is tank.
displayed
on the
screen.
Check method
The same as "Ink does not jet.
When "Open" is
executed on the
Solenoid
* MV6
Valve/Pump Test
malfunctions.
screen, no
operation sound is
produced.
Clogging in
the pipe or Except the above
joint
When "Operated"
of pump and then
"Open" of MV1 and
Ink supply
MV6 are executed
pump is
on the Solenoid
clogged.
valve / pump test
screen, the ink
does not flow.
When "Open" is
executed on the
* MV2 Solenoid
malfunctions Valve/Pump Test
. screen, no
operation sound is
produced.
When "Open" is
executed on the
* MV7 Solenoid
malfunctions Valve/Pump Test
. screen, no
operation sound is
produced.
An initial level Refer to "6.2.4
can not be Replenishment
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 or
ink in each
Makeup Ink Low
reservoir is in
Warning is
short supply.
displayed on the
screen.
4-28
Repairing method
Replace or repair the
solenoid valve
(MV6). Refer to
"4.12 Repairing
method when the
circulation route dry
or sticks".
Refer to "4.12
Repairing method
when the circulation
route dry or sticks".
Refer to "4.12
Repairing method
when the circulation
route dry or sticks".
Replace or repair the
solenoid valve
(MV2). Refer to
"4.12 Repairing
method when the
circulation route dry
or sticks".
Replace or repair the
solenoid valve
(MV7). Refer to
"4.12 Repairing
method when the
circulation route dry
or sticks".
-
Execute the Ink refill
again.
Restart after ink or
makeup ink is
replenished.