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4-65
Trouble
symptom
Probable cause
Check method
Repairing method
Charging or
drainage is
impossible.
CV assembly
malfunctions.
CV assembly is
dry or sticks.
In cases other than
three cases above .
Refer to
“4.15
Repairing method
when the circulation
route is dry or sticks
”.
The
circulation
route clogs.
Clogging in the
pipe or joints
In cases other than
four cases above.
Refer to
“4.15
Repairing method
when the circulation
route is dry or sticks
”.
Makeup in
Nozzle 1 is
not ejected.
The makeup
pump
malfunctions.
Follow the same descriptions as those of
“The supply pump
malfunctions" above.
However, replace the makeup pump head
instead.
The solenoid
valve
malfunctions.
* MV8
malfunctions.
When
“Open” is
executed on
“Solenoid
Valve/Pump Test
”
screen, no operation
sound is produced.
Replace the solenoid
valve (MV8). Refer to
“4.15 Repairing
method when the
circulation route is
dry or sticks
”.
Makeup in
Nozzle 2 is
not ejected.
The makeup
pump
malfunctions
Follow the same descriptions as those of
“The supply pump
malfunctions" above.
However, replace the makeup pump head
instead.
The solenoid
valve
malfunctions
* MV28
malfunctions.
When
“Open” is
executed on
“Solenoid
Valve/Pump Test
”
screen, no operation
sound is produced.
Replace the solenoid
valve (MV28). Refer
to
“4.15 Repairing
method when the
circulation route is
dry or sticks
”.
The ink
pressure of
Nozzle 1
does not
increase.
The supply
pump
malfunctions.
Follow the same descriptions as those of
“Ink in Nozzle 1 is not
ejected".
The solenoid
valve
malfunctions.
* MV1
malfunctions.
When
“Open” is
executed on
“Solenoid
Valve/Pump Test
”
screen, no operation
sound is produced.
Replace or repair the
solenoid valve (MV1).
Refer to
“4.15
Repairing method
when the circulation
route dry or sticks
”.
* MV2
malfunctions.
When
“Open” is
executed on
“Solenoid
Valve/Pump Test
”
screen, no operation
sound is produced.
Replace or repair the
solenoid valve (MV2).
Refer to
“4.15
Repairing method
when the circulation
route dry or sticks
”.
* MV9
malfunctions.
When
“Open” is
executed on
“Solenoid
Valve/Pump Test
”
screen, no operation
sound is produced.
Replace the solenoid
valve (MV9).
The pressure
resistance of
MV6 is faulty.
When the pump 1 and
then MV1 are turned
on, ink flows to the
recovery tube.
(Solenoid Valve/Pump
Test screen)
Replace the solenoid
valve (MV6).
Others
* The pressure
sensor
malfunctions.
Ink ejects and printing
can be performed but
the pressure value is
abnormal.
Replace the pressure
sensor. Refer to
“4.6.1 Pressure
Sensor (Nozzle 1)
Replacement
Procedure
”.
Содержание UX Twin Nozzle
Страница 1: ...Service Manual HITACHI Printer UX Twin Nozzle Model Revision February 2017 Version A ...
Страница 106: ...3 30 Circuit diagram of EZJ127A board ...
Страница 123: ...3 47 Circuit diagram of EZJ129 board ...
Страница 131: ...3 55 3 3 20 Electrical Connection Diagram ...
Страница 151: ...4 17 7 Reset the time of the replaced solenoid to 0 on the Parts usage time management screen ...
Страница 352: ...7 1 7 Attached Drawing 7 1 Circulation System Diagram Circulation System Diagram ...
Страница 354: ...7 3 7 3 Electrical Connection Diagram Electrical Connection Diagram ...
Страница 355: ...7 4 7 4 Dimensions around charge electrode and deflection electrode Nozzle diameter 65μm Nozzle 2 side Nozzle 1 side ...