Ink jet fluid system

Details Ink jet fluid system Ink jet fluid system

G - Physics

01

D

101/101

G01D 15/18 (2006.01) B41J 2/17 (2006.01)

Patent

CA 1151947

BF&N 7030 INK JET FLUID SYSTEM Abstract of the Disclosure An ink jet fluid system includes a print head, defining a fluid reservoir, and further including at least one orifice communicating with the reservoir for generating a jet drop stream from the fluid flowing through the orifice. Inlet and outlet valves are connected to inlet and outlet openings of the print head, respectively, and a siphon line extending generally downward is connected to the outlet valve. A float valve, connected between the siphon line and the fluid supply system for the print head, vents the lower end of the siphon line to atmosphere to produce a sub-atmospheric fluid pressure within the print head after shutdown of the printer. The float valve includes a float which prevents air from entering the fluid supply through the valve. The float valve further is arranged so as to prevent ink within the valve from flowing out the vent opening.

381837

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