Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2007-05-08
2007-05-08
Meier, Stephen (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S022000
Reexamination Certificate
active
10839467
ABSTRACT:
The method for shutting down an ink jet printhead and an ink jet printing station, wherein the method includes maintaining a constant positive pressure at the drop generator by closing the cross flush valve or ensuring that the cross flush valve is closed, thereby closing off the fluid return line to create a constant positive pressure through the drop generator and the orifice into the fluid line. The shutdown continues by stopping the flow of fluid from the fluid supply line and circulating cleaning fluid through at least one filter, into the drop generator, out through the orifice structure, into the fluid line, and into a reservoir. The shutdown ends by flowing pressurized air, which is preferably clean of particulates, through the filter, drop generator, orifice structure, and fluid line to displace substantially all the cleaning fluid from the filter, drop generator, and orifice structure.
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DeVivo Daniel J.
Simon Robert J.
Eastman Kodak Company
Garcia, Jr. Rene
Meier Stephen
The Buskop Law Group, P.C.
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