Hitachi IJ PH - Circulation Sequence Tables

ＯＮ
ＯＦＦ
Eject Ink
（
Goes to Standby
）
[Control] - [Eject ink] or [Circulation Control] - [Eject ink]
Start sequence
（
For mentenance
）
PH-D
360s Max.
15s Max.
Ink Viscosity
Measurement
MV10: Viscometer
ON
4.ON
1.ON
1.ON
ON
ON
ON
ON
1.ON
ON
1.ON
3.ON
4.ON
ON
ON
ON
ON
1.ON
9
Standby
−
2.ON
3.ON
1.ON
8
Interval for
stable
pressure
5
2.ON
5.ON
2.ON
3.ON
7
Suck air in
the nozzle
5
3.ON
4.ON
1.ON
Eject ink
1
3.ON
1.ON
4.ON
2.ON
ON
5
1
3.ON
2.ON
1.ON
2.ON
3.ON
1.ON
2
Pre-heating
15
1
Interval
1
MV1: Supply
MV2: Replenishment
MV3: Recovery
MV4: Agitation
MV5: Circulation
MV6: Pressure relief
MV7: Makeup ink
MV8: Cleaning
−
MV1: Supply
MV2: Replenishment
MV3: Recovery
MV8: Cleaning
15
Detect the
APH
condition
Sequence Name
Operation
Remarks
14
Ready
(High-
voltage ON)
2.ON
1.ON
3.ON
−
1.ON
1.ON
ON
5.ON
ON
1.ON
3.ON
2.ON
3.ON
1.ON
12
Refresh ink
the MV2
path
30
1.ON
2.ON
3.ON
1.ON
2.ON
11
2.ON
Interval for
stable
pressure
5
1.ON
10
Suck air in
the nozzle
3.ON
20
4.ON
4.ON
2.ON
9
Detect bent
beam
3.ON
3
8
Suck air in
the nozzle
3.ON
3
5.ON
2.ON
4.ON
1.ON
2.ON
7
Eject ink
3.ON
4.ON
1
6
1.ON
Eject
makeup ink
3.ON
0.5
4.ON
2.ON
2.ON
1.ON
5
Suck
circulation
path
3.ON
Remarks
Step
Outline
−
Time [sec.]
MV9: Shutoff
Sequence Name
PH-D
Pump
Operation
MV4: Agitation
MV5: Circulation
MV6: Pressure relief
MV7: Makeup ink
1
ON
ON
2
Interval
Pre-heating
ON
3.ON
1.ON
Pressurize
supply path
2.ON
6
Interval
1800
ON
ON
ON
6
2.ON
ON
3.ON
2.ON
1.ON
3.ON
2.ON
1.ON
3.ON
3.ON
4
5
Ink
replenish-
ment
Makeup ink
replenish-
ment
MV2: Replenishment
MV3: Recovery
2.ON
2.ON
MV1: Supply
3.ON
4.ON
MV5: Circulation
MV6: Pressure relief
MV7: Makeup ink
MV8: Cleaning
10
120
5
2.ON
4.ON
3
2
Refresh ink
the visco-
meter path
1
Outline
Time [sec.]
[Start up] - [Eject ink]
Eject Ink
（
Goes to Ready
）
Start sequence
1.ON
3
Refresh ink
in the unit
2.ON
1
4
MV9: Shutoff
Pump
ON
Normal Running
Operation
−
MV4: Agitation
Density control sequence
Step
Step
PH-D
Sequence Name
MV9: Shutoff
Outline
Time [sec.]
ON
ON
5
2.ON
ON
ON
Pressurize
supply path
Suck
circulation
path
3
Pump
Remarks
10
3.ON
ON
4
5
1.ON
Refresh ink
in the unit
15
5
5
1
Heating
13
2.ON
Depends on the environ-
ment
ON
ON
ON
ON
5times
7.3 Circulation sequence
7-3