Patent ID: 6259463
Filing Date: 2001-07-10
Classification: B41J

Abstract:
A method for printing comprising:supplying ink from an ink reservoir through an ink channel connecting said ink reservoir with ink ejection chambers formed on a first surface of a substrate, said ink channel connected at a first end to said ink reservoir and at a second end to a separate inlet passage for refilling each of said ink ejection chambers with ink, a group of said ink ejection chambers in adjacent relationship forming one of a plurality of primitives on said first surface of said substrate in which only a maximum of one of said ink ejection chambers of each of said primitives is energized at a time;energizing an ejection element formed on said first surface of said substrate within one of said ink ejection chambers to cause a plurality of ink drops to be ejected from said one of said ink ejection chambers onto a media surface at a single pixel location in a single pass of said substrate over said media surface, wherein said ink ejection chambers are refilled with ink at approximately the same frequency that said ink drops are ejected; andmaintaining said plurality of ink drops ejected as substantially separate drops until said plurality of ink drops merge upon impact with said media surface.