US 2006/0221125 A1 · Liquid droplet ejection head, liquid droplet ejection apparatus and image recording method

Abstract

The liquid droplet ejection head has a plurality of nozzles arranged in a fixed arrangement pattern two-dimensionally in a first direction and a direction oblique to the first direction. The nozzles compose a projected nozzle row in the first direction when supposing that the nozzles are projected so as to align in the first direction; first one of the nozzles and second one of the nozzles are located in a juncture region; a distance in a second direction perpendicular to the first direction between the first and second nozzles is larger than a distance in the second direction between other two of the nozzles that are located in a region other than the juncture region and sequenced in the projected nozzle row; third at least one of the nozzles lies substantially halfway between the first and second nozzles; and the first, third and second nozzles are sequenced in the projected nozzle row.

Claims25

Dependent claims

A liquid droplet ejection head having a plurality of nozzles arranged in a fixed arrangement pattern two-dimensionally in a first direction and a direction oblique to the first direction, wherein:

the nozzles compose a projected nozzle row in the first direction when supposing that the nozzles are projected so as to align in the first direction;
first one of the nozzles and second one of the nozzles are located in a juncture region;
a distance in a second direction perpendicular to the first direction between the first and second nozzles is larger than a distance in the second direction between other two of the nozzles that are located in a region other than the juncture region and sequenced in the projected nozzle row;
third at least one of the nozzles lies substantially halfway between the first and second nozzles;
and
the first, third and second nozzles are sequenced in the projected nozzle row.

3 more elements

A liquid droplet ejection apparatus, comprising:

a liquid droplet ejection head which has a plurality of nozzles arranged in a fixed arrangement pattern two-dimensionally in a first direction and a direction oblique to the first direction, the nozzles composing a projected nozzle row in the first direction when supposing that the nozzles are projected so as to align in the first direction, first one of the nozzles and second one of the nozzles being located in a juncture region and sequenced in the projected nozzle row, a distance in a second direction perpendicular to the first direction between the first and second nozzles being larger than a distance in the second direction between other two of the nozzles that are located in a region other than the juncture region and sequenced in the projected nozzle row;
and
a liquid droplet volume adjustment device which adjusts a liquid droplet ejection volume of a juncture region nozzle corresponding at least one of the first and second nozzles.

Dependencies are inferred from the claim text.

Liquid droplet ejection head, liquid droplet ejection apparatus and image recording method

Life of this patent

Liquid droplet ejection head, liquid droplet ejection apparatus and image recording method

Life of this patent

Abstract

Claims25