Ink supply for pressurized ink jet

Details Ink supply for pressurized ink jet Ink supply for pressurized ink jet

G - Physics

01

D

101/96.0218

G01D 15/18 (2006.01) B41J 2/175 (2006.01)

Patent

CA 1071690

INK SUPPLY FOR PRESSURIZED INK JET Abstract of the Disclosure Ink supply system and sequencing for purge, startup, operation, and shutoff of pressurized ink jet systems. Employ- ing an ink jet head having an inlet, startup is accomplished by filling the head with ink, closing an inlet valve, building pressure behind the valve to a level significantly greater than required fox operation, and opening the valve. The system includes an inlet valve connecting a pump from a reservoir to the ink jet head, and an outlet valve connecting an outlet from the head to the reservoir and a vacuum source. At shutoff, the inlet valve is closed with the outlet valve open to create a negative pressure in the head.

278020

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