
Integrated Valve
Appendix B: Theory of Operation
5760-107 Operations Manual Rev C
Page 59 of 86
Ink Delivery System Features
The Ink Delivery System (IDS) provides ink to the print heads. In addition to pumping ink
from the supply container, the IDS is programmed with the following features:
1.
Continuous monitoring and maintenance of ink line pressure.
Whenever the pressure
drops to a level of 20 psi, the IDS pump turns on for five seconds and the pressure
returns to a level between 23 and 27 psi.
2.
Ink supply "low" detection.
A float sensor mounted to the end of the ink cap assembly in
the ink container informs the IDS when the container is almost empty. The IDS then
alerts the operator by turning on the beacon light, and by sending a signal via ethernet
to the IJ3000 controller.
3.
Ink supply "out" detection.
After the ink container float has dropped low and the IDS
pump has turned on for 60 cycles, it automatically shuts down the pump and alerts the
operator via a slow flashing of the beacon, as well as an ethernet signal to the control-
ler. Sufficient ink remains in the accumulator to continue printing while the operator
replaces the ink supply container. Depressing the Prime Switch will allow for an addi-
tional 10 pump cycles.
4.
Broken line detection.
Any break in the ink line downstream from the IDS causes the
accumulator to quickly empty its supply through the break. When the IDS senses this
precipitous drop in pressure, it shuts down the pump and alerts the operator via a rapid
flashing of the beacon and an ethernet signal to the controller.
Startup Operation
After the appropriate fluid lines are plumbed to the inlet and outlet ports and all electrical
connections are made, the IDS3000 can be turned ON. Depressing the ON/OFF (I/O)
switch starts the process of automatically flushing the IDS with the supply fluid. Ink is
sucked from the supply tube in the tank, through the filter, and into the IDS. After entering
the system, the fluid passes through a check valve and a pump. Upon startup, the IDS
checks accumulator pressure status.
Normal Operation
During normal operation, fluid is pumped into the accumulator in 5-second-on / ½-second-
off cycles until the system reaches a pressure of 20 psi. The pump cycles off in this manner
in order to accurately measure pressure. Continuous monitoring of the line pressure occurs
after reaching the goal pressure.
The print head(s) drains the accumulator until a line pressure of 20 psi or lower is detected
by the pressure sensor circuitry. At this point, the pump cycles until the system reaches the
target pressure. This operation continues until the ink supply is depleted.
Содержание Diagraph IJ3000
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Страница 10: ...Integrated Valve Section 1 Introduction Page 2 of 86 5760 107 Operations Manual Rev C ...
Страница 12: ...Integrated Valve Section 2 Safety Page 4 of 86 5760 107 Operations Manual Rev C ...
Страница 22: ...Integrated Valve Section 3 System Components Page 14 of 86 5760 107 Operations Manual Rev C ...
Страница 42: ...Integrated Valve Section 5 Frequently Asked Questions Page 34 of 86 5760 107 Operations Manual Rev C ...
Страница 60: ...Integrated Valve Section 7 Troubleshooting Page 52 of 86 5760 107 Operations Manual Rev C ...
Страница 62: ...Integrated Valve Appendix A System Specifications Page 54 of 86 5760 107 Operations Manual Rev C ...
Страница 72: ...Integrated Valve Appendix B Theory of Operation Page 64 of 86 5760 107 Operations Manual Rev C ...
Страница 76: ...Integrated Valve Appendix C Parts and Supplies Page 68 of 86 5760 107 Operations Manual Rev C ...
Страница 90: ...Integrated Valve Appendix G Testing an Electrical Outlet Page 82 of 86 5760 107 Operations Manual Rev C ...
Страница 92: ...Integrated Valve Appendix H Electrostatic Discharge ESD Page 84 of 86 5760 107 Operations Manual Rev C ...