Hitachi IJ UX, Service Manual

Page: 39 / 308

2-19
[Stop ]
2015.07.07 12:45 Com=0
2.4 Test of solenoid valve/pump
●
The operation confirmation of solenoid valve and pump is performed.
①
Supply valve (MV1)
②
Replenishment valve (MV2)
③
Recovery valve (MV3)
④
Viscosity valve (MV4)
⑤
Circulation valve (MV5)
⑥
Pressure relief valve (MV6)
⑦
Makeup valve (MV7)
⑧
Cleaning valve (MV8)
⑨ Shutoff valve
(MV9)
⑩
Pump
⑪
Viscometer (MV10)
⑫
Exhaust valve (MV11) *1
⑬ Gas/liquid
valve (MV12) *1
⑭ INK LOCK
⑮ MAKEUP LOCK
*1
：
UX-E only
●This test only displays operation status when in operating state.
●The rotating speed of the pump can be changed. (High
、
Middle
、
Low)
Operation differs according to state
Mode “Stop” state Other than “stop” state
Service
personnel
maintenance
mode Carries out operation confirmation of
solenoid valve and pump.
(Multiple solenoid valves can be operated
simultaneously.)
Only displays operation state.
Operations such as opening
and closing the solenoid valve
cannot be performed.
User
maintenance
mode Carries out operation confirmation of
solenoid valve and pump.
(One solenoid valve at a time is operated.)
1 Press Solenoid valve/pump test on the maintenance menu.
The solenoid valve /pump test screen is then displayed.
2 Press the operation button.
The operation state of the solenoid valve and pump is then displayed.
(Confirm operation by operation sound.)
Open: The solenoid valve is opened. Close: The solenoid valve is closed.
Operation: The pump is operated. Stop : The pump is stopped.
UNLOCKED: It's unlocked. LOCKED: It's locked.
*) Caution:
The pumps and solenoid valve can be operated simultaneously however, operate them
with care when the solenoid valve are turned on while pump is activated because it is not
a steady operation.
For information on changing to the service personnel maintenance mode,
refer to “2.1 Setting of service personnel maintenance mode.”
Back
Solenoid v/p test
MV1
Open Close
MV2 Open Close
Visco-
meter
Oper-
ated
Stop
MV5
Open Close
MV6
Open Close
MV7
Open Close
MV8
Open Close
Pump
Oper-
ated
Stop
MV3
Open Close
MV4
Open Close
MV9
Open Close
Ink pressure 0.000 (MPa; standard value: 0.250)
UN-
LOCK-
ED
LOCK-
ED
LOCK-
ED
INK
LOCK
MAKEUP
LOCK
MV11 Open
Close
Open Close
MV12
UN-
LOCK-
ED
Pump( Ｈ )
Pump( Ｍ )
Pump( Ｌ )