Excitation V Adjustment - Hitachi UX Twin-Nozzle Technical Manual

6.10 Excitation V adjustment

(1) Overview
● The Excitation V set value is 0 to 19. The state of the ink drops is different for each setting.
● The optimum Excitation V set value must be input to maintain good print quality.
● Perform nozzle property test printing, and the center value of the range where printing is good is the optimum
Excitation V set value.
(Example) When printing is good at the Excitation V set value 5 to 15 range at nozzle property test, the
optimum Excitation V set value is the center value 10.
● Memorizes the ambient temperature when the Excitation V set value was updated as the reference ambient
temperature.
If the ambient temperature and the reference ambient temperature difference exceeds a certain value during
use, "Check Excitation V set value" warning will be generated. In that case, readjust the Excitation V setting.
(2) Operation
● For Excitation V setting, select the optimum set value from the result of test printing for each set value and
input the selected value from the operation panel. Perform operation in accordance with the following
procedure:
At the Maintenance menu, press Excitation V update (nozzle test) .
1
● The Excitation V update screen is displayed.
Excitation V update
a
b
Set Print trigger source and
a
2
Print trigger source
a
Select the timing at which printing is performed.
Print trigger source
6-29 ●Excitation V adjustment
Displays the current set value.
Excitation V-ref.：Nozzle2
− 09
Excitation V-ref.：Nozzle1
− 09
Ref. ambient temperature 23 (℃)
Inc.
Automatic update
Incremental change (1〜9)
1
Print trigger source Button input
Print data
For test
Perform nozzle property test and find the optimum excitation
voltage value.
Button input Sensor
Prints by pressing Start printings on the operation panel.
[Standby ]
Com=0
Makeup
(0〜19)
＋
(0〜19)
＋
Sensor
Data to be displayed
Print data of nozzle property test printing.
b
Prints at the print target sensor signal timing.
2018.07.07 12:45
Ink
Manual Shutdown
HOME
Ambient temperature when the
current set value is set
Twin
Nozzle1 : Nozzle1 only
Nozzle 2 : Nozzle2 only
Twin: Both of Nozzle 1 and
Nozzle 2
Nozzle test
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