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US 5,966,148 AGranted
Apparatus for printing with ink jet chambers utilizing a plurality of orifices
AssigneeDataproducts Corporation
InventorsRobert L. Rogers, Arthur Mikalsen, Jeffrey G. Cartin
Life of this patent
Estimating the term…
Abstract
A dense array of ink jets is achieved by a fanning-in of chambers to a linear array of orifices. The ends of the chambers remote from the orifices have actuation locations which are coupled to elongated transducers having axes of elongation which are parallel to the axes of ejection of droplets from the orifices.
Claims19
An impulse ink jet apparatus comprising:
- a plurality of side-by-side orifices forming a linear array, wherein each of said orifices ejects droplets along an ejection axis and opens into at least one chamber, each of said chambers having an actuation location laterally displaced from the linear array and mutually laterally displaced from adjacent chambers;
- and
- a plurality of elongated transducers juxtaposed to said actuation locations respectively, and laterally displaced from said orifices respectively, said transducers having an axis of elongation extending substantially parallel with said ejection axis.
An impulse ink jet apparatus, comprising:
- a plurality of side-by-side orifices forming a linear array, wherein each of said orifices ejects droplets along an ejection axis and opens into at least one chamber, each of said chambers having an actuation location laterally displaced from the linear array and mutually laterally displaced from adjacent chambers;
- for each chamber, a transducer laterally displaced from said linear array for expanding and contracting a volume of ink in the chamber;
- and
- for each chamber, a diaphragm coupling the transducer to the chamber and separating the transducer from the volume of ink within the chamber, said transducer being attached to said diaphragm such that the diaphragm is deformed so as to expand the chamber to an enlarged state when the transducer is energized and return the diaphragm to a planar state when the transducer is deenergized.
1 more element
An impulse ink jet apparatus comprising:
- a plurality of side-by-side orifices forming a linear array, wherein each of said orifices ejects droplets along an ejection axis and opens into at least one chamber, each of said chambers having an actuation location laterally displaced from the linear array and mutually laterally displaced from adjacent chambers with a chamber-to-chamber spacing of less than 0.0500 inches between adjacent chambers;
- and
- a plurality of elongated transducers juxtaposed to said actuation locations respectively, said transducers having an axis of elongation extending substantially parallel with said ejection axis.
Dependencies are inferred from the claim text.