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6412923 |
Ink ejector that ejects ink in accordance with print instructions
An ink ejector has ink channels formed therin. The ejector ejects two consecutive ink droplets for each dot. In this case, an ejection pulse is applied to eject the first droplet from the...
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6409320 |
Ink jet printer head and ink jet printer
The ink jet printer head comprises: a piezoelectric device 10 including a stress removing electrode 14, a stress removing piezoelectric layer 16 formed on the stress removing electrode 14, ...
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6402304 |
Piezoelectric actuator, ink jet printing head, printer, method for manufacturing piezoelectric actuator, and method for manufacturing ink jet printing head
A piezoelectric actuator, made of a substrate and a piezoelectric film layer resistant to erosion is provided. The area of the piezoelectric actuator can be enlarged, and has a flat top surface....
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6402303 |
Functional thin film with a mixed layer, piezoelectric device, ink jet recording head using said piezoelectric device, and ink jet printer using said recording head
The present invention is to produce a piezoelectric device with which the number of production processes can be reduced and reliability can be improved. A piezoelectric device ( 40 ) comprises one...
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6402972 |
Solid state ink jet print head and method of manufacture
An ink jet print head having a substrate with an upper surface, and an ink supply conduit passing through the substrate. An array of independently addressable ink energizing elements are attached...
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6398349 |
Piezoelectric device, ink-jet printing head, and method for manufacturing same, and printer
A piezoelectric device includes an adhesive layer composed of a material which enhances adhesion between a base plane of a piezoelectric device and a lower electrode, a diffusion preventing layer...
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6394589 |
Ink jet printhead with reduced crosstalk
An ink jet printhead composed of: a reservoir storing a quantity of printing ink, an ink manifold defining an ink supply volume in communication with the reservoir for holding a supply of ink...
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6386672 |
Ink jet type recording head
An ink jet recording head including a flow path unit having pressure generating chambers, a piezoelectric vibrator for pressurizing the pressure generating chambers, a semiconductor integrated...
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6382780 |
Inkjet head formed of divided pressure-chamber plate, method for manufacturing the same, and recording device having the inkjet head
The instant invention has an exemplified object to provide an inkjet head and recording device having such an inkjet head with a simpler structure as achieves higher quality of printing...
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6382781 |
Micro device, ink-jet printing head, method of manufacturing them and ink-jet recording device
In a micro device including a through hole for piercing a substrate and a fragile part provided around or across a part corresponding to a through hole of a multilayer film and relatively thinner...
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6378972 |
Drive method for an on-demand multi-nozzle ink jet head
To increase the size of dot printed on a print medium with an on-demand multi-nozzle ink jet head, at least two unit pulses are applied in succession to a piezoelectric element which varies the...
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6371601 |
Ink jet type recording head
Pressure generating units 1, 2 are formed so as to be inclined at an angle θ with respect to pressure generating chamber 4, 5 arraying lines. A plurality of pressure generating units are fixed...
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6367916 |
Piezoelectric device for controlling ink ejection and inkjet head for inkjet printer
A piezoelectric device for applying pressure to ink within a plurality of ink chambers formed in an inkjet head to control ejection of the ink, the piezoelectric device being mounted on a plate...
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6361152 |
Ink jet head and method of fabrication thereof
An ink jet head having a plurality of drive columns includes a plate having a plurality of diaphragm portions which are bonded to end surfaces of the drive columns with an adhesive, respectively....
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6361153 |
Preload of data prior to fire pulse by using a dual buffer system in ink jet printing
The efficiency and speed in ink jet printing can be improved by adding a storage register between the shift register and the jet drive logic. By adding the storage register, jet print data that is...
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6357865 |
Micro-electro-mechanical fluid ejector and method of operating same
A micro-electromechanical fluid ejector that is easily fabricated in a standard polysilicon surface micromachining process is disclosed, which can be batch fabricated at low cost using existing...
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6357115 |
Method of manufacturing a fluid injection apparatus
A method of manufacturing a fluid injecting apparatus in which an actuator oscillates a nozzle plate disposed in an injecting tank for storing a heated image forming solvent so as to inject an...
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6354685 |
Driving device and driving method of on-demand ink jet printer head
In an on-demand ink jet printer head for discharging minute ink drops by means of meniscus position control and acoustic wave control, the length of each discharge pause period with respect to each...
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6351879 |
Method of making a printing apparatus
A method of making a printing apparatus configured for drawing fluid from a fluid reservoir and then ejecting droplets of fluid onto a receiver to form an image include the steps of providing an...
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6350020 |
Ink jet recording head
An ink jet print head has nozzles and ink passages each communicating with one of the nozzles. The head includes piezoelectric actuators each for changing one of the passages in volume to eject ink...
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6347862 |
Ink-jet head
There is provided an ink-jet head having ink outlets formed at a high density for use in an ink-jet recorder. The ink-jet head comprises ink outlets, compression chambers communicating with the ink...
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6343856 |
Ink jet array
A device for delivering ink to a sheet of paper which includes a body member containing side surface portions which extend into a head surface, the head surface being inclined at an angle relative...
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6343855 |
Ferroelectric element process for producing the same and ink jet head
A ferroelectric element, having a ferroelectric material containing at least two metals, the ferroelectric element having been produced by a process including the steps of: providing alkoxides of...
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6338548 |
Seal in a micro electro-mechanical device
A micro electro-mechanical device embodied within an ink ejection nozzle having an actuating arm that is caused to move an ink displacing paddle when heat inducing electric current is passed...
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6336715 |
Ink jet recording head including interengaging piezoelectric and non-piezoelectric members
A piezoelectric member includes a flat part and a plurality of convex parts on the flat part, and at least a part of each convex part is a piezoelectric element. A non-piezoelectric member is made...
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6336707 |
Recording element and recording device
A recording element and a recording device is disclosed which may stably eject very fine liquid drops without nozzles and with low frequency low voltage driving. The element of the present...
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6334668 |
Ink-jet recording apparatus
To provide an ink jet recording apparatus wherein distorting the waveform of a drive signal can be prevented, a recording head also containing a drive signal generating circuit can be tested, and...
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6332667 |
Orifice member of nozzle for ink-jet printing
A nozzle for ink-jet printing includes a manifold, a vibration element, and an orifice member. The manifold has an outside surface extending in the longitudinal direction of the manifold as well as...
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6331052 |
Ink jet printing apparatus
An ink jet printing apparatus includes an ink jet head having a plurality of nozzles for respectively ejecting ink drops, a plurality of ink chambers communicating with the nozzles, and a plurality...
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6328433 |
Piezoelectric film element and ink-jet recording head using the same
A piezoelectric film element with structural characteristics such that cracks are not generated in the manufacturing of the piezoelectric film and a thicker piezoelectric film is possible without...
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6328398 |
Ink-jet recording head driving method and ink-jet recording device
An ink-jet recording head driving method and an ink-jet recording device wherein the quantity of ink composing an ink droplet can be reduced as much as possible without deteriorating the flying...
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6328432 |
Ink jet recording head having mending layers between side walls and electrodes
In an ink jet recording head having a structure wherein grooves are formed on a piezo-electric ceramic substrate by a cutting work and the resulting side walls of the grooves are driven to thereby...
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6328434 |
Inkjet head, its manufacturing method and recording device
It is an exemplified object of the present invention to provide an inkjet head, its manufacturing method, and a recording device that can form a high-quality image while preventing an ink leakage....
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6322203 |
Ink jet recording head and ink jet recorder
An ink jet recording head which has a flow passage formation substrate including a reservoir, a first ink supply port formed on a face opposed to an elastic plate, a second ink supply port formed...
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6318829 |
Ink jet recording apparatus and ink ejection control method
Disclosed are an ink jet recording apparatus and method to achieve good balance between the amount of ink supplied and the amount of ink ejected. An ink jet head of the recording apparatus has an...
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6315400 |
Ink jet recording head and ink jet recorder
The present invention relates to an ink-jet recording head and an ink-jet recording device wherein peeling, a crack etc. at the end of a piezoelectric active part can be prevented. In an ink-jet...
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6312077 |
Ink jet printer and ink jet printing method
In the ink jet printer, a pressure generation chamber 11 is expanded in a stepped manner, which enables a high speed discharge of a very small ink droplet. Prior to the ink discharge, the pressure...
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6309056 |
Ink jet head, drive method of ink jet head, and ink jet recording apparatus
An ink jet head for a printer wherein an ink drop is ejected from a nozzle to fly and land on the recording paper to form an image. The ink jet head includes the nozzle for ejecting ink, an ink...
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6306671 |
Method of manufacture of a shape memory alloy ink jet printer
A method of manufacturing a shape memory alloy ink jet printhead wherein an array of nozzles are formed on a substrate utilizing planar monolithic deposition, lithographic and etching processes....
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6305773 |
Apparatus and method for drop size modulated ink jet printing
An apparatus and method provide on-demand drop volume modulation by utilizing a single transducer driving waveform to drive an ink jet. The driving waveform includes at least a first portion and a...
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6299295 |
Ink jet printing head having ink chambers arranged in succession by lamination
An ink jet printing head comprises a plurality of ink liquid chambers (pressure chambers) 13 connected to an ink supply source and arranged in a predetermined direction and a plurality of nozzles...
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6299288 |
Method and apparatus for variably controlling size of print head orifice and ink droplet
An ink jet print head apparatus which produces variably controls the ink jet print head orifices and the size of the ink jet droplets ejected therethrough, and a method for controlling the size of...
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6296351 |
Ink jet recording head with narrowed reservoir ends
In order to ease the discharge of air bubbles stagnated in end portions of a reservoir in an ink jet recording head, the end portions of the reservoir are so formed that the widths thereof are...
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6296811 |
Fluid dispenser and dispensing methods
A fluid dispenser comprises a fluid chamber having two actuators coupled thereto. One of the actuators damps a fluid response of the other. The fluid chamber may comprises a cylindrical capillary,...
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6293642 |
Ink jet printer outputting high quality image and method of using same
An ink jet printer is adapted to drive a piezoelectric element by applying pulse voltage having waveforms of A1-A8 based on image data, fly ink drops respectively having sizes corresponding to...
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6290315 |
Method of driving an ink jet recording head
In order to provide an inkjet recording head in which both high-speed printing and high-quality printing can be attained, a drive signal is generated so as to include a first expanding element and...
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6290339 |
Method of directing fluid between a reservoir and a micro-orifice manifold
A method of directing fluid between a reservoir and a micro-orifice manifold includes the step of providing a piezoelectric actuating element operably associated with independent fluid containment...
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6286943 |
Droplet deposition apparatus
A drop-on-demand piezo-electric printhead has channel walls defined by piezo-electric material (10) with electrodes (26) along the length thereof. In portions of the channels which are open to an...
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6286942 |
Ink jet recording head with mechanism for positioning head components
In an ink jet recording head, after a plate-shaped piezoelectric element is positioned and fixed onto a fixing plate, the piezoelectric element is sliced into a large number of vibrators and the...
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6286925 |
Method of controlling piezo elements in a printhead of a droplet generator
The printhead has a multitude of adjacently arranged channels with piezo-electrical shear converters. The impulse form for activation of the converters--depending upon the number of simultaneously...
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