|| List of recent Inkjet Head-related patents
|Inkjet head storage and cleaning|
Inkjet head cleaning and storage includes cleaning an orifice plate by inserting a tip of a shaped wiper into a slit of a printing mask, such that one or more shoulders of a handling end of the shaped wiper are in contact with respectively one or more edges of the slit. The shoulders of the shaped wiper facilitate the tip applying a predetermined pressure to an orifice surface during wiping.
|Inkjet head driving device|
According to one embodiment, an inkjet head driving device includes a load-voltage generating circuit and a plurality of channel driving circuits provided to respectively correspond to a plurality of channels of an inkjet head. The load-voltage generating circuit selects any one voltage out of a reference voltage and a driving voltage having potential other than the reference voltage and outputs the voltage.
|Inkjet recording device|
Provided is an inkjet printing apparatus that can dry a medium immediately after printing or bleed-through ink while preventing the medium or bleed-through ink from being in contact with a dryer. In an inkjet printing apparatus including an inkjet head (20) for discharging ink onto a mesh-like media (10) having througth holes penetrating from the top surface, which is the printing surface, to the bottom surface, a feeder (12) for feeding the mesh-like medium (10) in a feed direction, and a dryer for drying the mesh-like medium (10) hit by ink discharged from the ink-jet head (20), the dryer has a blower (28) aced under the mesh-like medium 10) for applying an air flow to the bottom surface of the mesh-like medium (10) with the top surface hit by the ink..
|Inkjet head and method of manufacturing inkjet head|
A wiring substrate, wherein wiring electrodes are formed to apply voltage to the driving electrode through the connection electrode, bonded on the rear surface of the head chip to protrude from the head chip in a direction perpendicular to a direction of a channel array so that all the channels are exposed at the rear surface of the head chip.. .
|Inkjet recording apparatus|
Curing processing is realized according to differences in absorption characteristics of activation light among inks and characteristics of layers to be formed with the inks. A scanning device reciprocally moves in a first direction an inkjet head including a first nozzle array ejecting a first ink and a second nozzle array ejecting a second ink; a relative movement device relatively moves a recording medium in a second direction with respect to the head; an ejection control device divides the nozzle array into regions in the second direction and controls ink ejection for each unit of the divided nozzle region; an activation light irradiation device irradiates the inks deposited on the medium with the activation light; an irradiation region dividing device divides an irradiation range into divided irradiation regions corresponding respectively to the divided nozzle regions; and a light quantity control device controls light quantities respectively for the divided irradiation regions..
|Method of forming ink ejection adjustment pattern, ink ejection adjustment method for inkjet head and inkjet printer|
An ejection adjustment pattern forming method of forming an ejection adjustment pattern on a print medium with an inkjet head, which has a plurality of nozzles, with moving the inkjet head in a predetermined scanning direction. The method forms a plurality of thickness measurement patterns respectively on a plurality of pattern forming areas defined on the print medium by causing the plurality of nozzles of the inkjet head to eject ink drops, and forms a plurality of judging patterns respectively on the plurality of pattern forming areas.
|Inkjet printer with ink collection device|
An inkjet printer includes a printer chassis, an inkjet head attached to the printer chassis, a belt connected to the inkjet head, a motor, and an ink collection device. The motor is secured to the printer chassis and meshes with the belt.
|Method and apparatus for printing|
A method for printing on a continuous sheet with an inkjet head includes printing a plurality of images in sequence and performing plural kinds of maintenance operations by using intermediate areas located between one of the images and next one of the images in accordance with a schedule, and setting the schedule such that a first maintenance operation included in the plural kinds of maintenance operations and a second maintenance operation which is performed with frequency different from that of the first maintenance operation are not performed at the same intermediate area.. .
|Apparatus for and method of driving multi-nozzle piezo-inkjet head based on digital grayscale|
There is provided an apparatus for and method of driving a multi-nozzle piezo-inkjet head based on a digital grayscale, the apparatus including: a control unit providing a pulse data signal having at least one pulse waveform according to graphic image data, controlling a voltage variation according to a frequency response characteristic of the multi-nozzle piezo inkjet head, and controlling a voltage amplification, so as to eject droplets of ink at a previously set jetting frequency according to the graphic image data; a variable voltage supply unit generating a varied operating voltage by varying a level of a previously set direct current voltage; and an amplification circuit unit generating a voltage driving waveform including at least one pulse waveform having the level of the varied operating voltage, and supplying the voltage driving waveform to the multi-nozzle piezo inkjet head.. .
|Piezoelectric actuator, inkjet head assembly and method of manufacturing the same|
There are provided a piezoelectric actuator, an inkjet head assembly, and a method of manufacturing the same. The piezoelectric actuator includes upper and lower electrodes providing a driving voltage; and a piezoelectric body provided between the upper and lower electrodes and providing driving force to ink within each of a plurality of pressure chambers provided in an inkjet head, wherein the piezoelectric body includes branch portions separately provided on an upper portion of each of the plurality of pressure chambers and a large area portion connected to one end of each of the plurality of branch portions and integrally formed, and a connective electrode pattern is provided on a portion of each of the upper electrodes corresponding to the large area portion..
|Circuit device and inkjet head assembly|
A circuit device according to an aspect of the present invention includes a circuit board which has one or more wiring layers formed on a base material and has an insulating layer laminated on a surface of the base material opposite to the one or more wiring layers, and a guiding member which is configured to encircle at least a part of an end face of the circuit board so that a space is formed with the end face and to guide movement of a dried body which is supplied to the formed space.. .
In an inkjet head, at least one of a plurality of nozzle arrays to eject ink of different colors from one another is arranged with nozzles displaced in position from nozzles of the other nozzle arrays in an arrangement direction of the nozzles. A controller is configured to reduce an amount of ink to be ejected to a pixel at an end portion of an image on one side in the arrangement direction from a nozzle array of the plurality of nozzle arrays having a nozzle protruding to the one side the most among the nozzles of the nozzle arrays for a same ejection target pixel..
An inkjet printer has a nozzle cap that keeps the nozzle surface of the inkjet head moisturized, and can keep the nozzle cap moist by means of a simple mechanism. A check processing device incorporating the inkjet printer has an inkjet head, a nozzle cap that covers the nozzle surface of the inkjet head and keeps the nozzle surface moist, and a shutter that closes the open part of the nozzle cap to keep the inside of the nozzle cap moist.
|Inkjet recording apparatus and method for controlling the same|
In an inkjet head which has nozzle rows having nozzles each of which ejects curable inks cured by imparted activation energy and which are arranged in a first direction at a pitch p, the nozzle rows being n (n≧5) nozzle rows of every color which eject, respectively, thick inks of four colors including cyan, magenta, yellow and black, and at least one light ink among light inks similar in color tone to the thick inks, the nozzles in each of the nozzle rows are arranged so as to be shifted by p/n from each other in a first direction, a nozzle of an ink with lowest cure sensitivity is arranged on the most upstream side in a direction of relative movement of a recording medium in the first direction, and further the nozzle of light ink is arranged in between the nozzles of two different thick inks.. .
|Ink-jet head and ink-jet recording apparatus|
The inkjet head for discharging a water-based ink for inkjet recording is disclosed, the inkjet head including two or more types of metal members used at portions to be brought in contact with the water-based ink, wherein at least two of the two or more types of the metal members are electrically connected, and the two or more types of the electrically connected metal members have spontaneous potentials each of which is measured with a reference electrode ag/agcl in the water-based ink and which provide an absolute value of a maximum difference therebetween, the absolute value being not more than 60 mv. An ink jet head is provided, in which any corrosion of a metal member is suppressed..
|Method of processing inkjet head substrate|
A method of processing an inkjet head substrate includes, in series, a step of forming a barrier layer on a substrate and forming a seed layer on the barrier layer, a step of forming a resist film on the seed layer and patterning the resist film such that the resist film has an opening corresponding to a wiring section configured to drive ink discharge energy-generating elements, a step of forming the wiring section in the opening of the patterned resist film, a step of removing the resist film, a step of laser-processing a surface of the substrate, a step of forming an ink supply port by anisotropically etching the substrate, and a step of removing the barrier layer and the seed layer.. .
|Inkjet recording apparatus|
An inkjet recording apparatus 1 which is able to print glossy images is provided. The apparatus includes a carriage 4 moving back and forth in a main scanning direction, a plurality of inkjet heads 5 mounted on the carriage 4 for discharging ink droplets in a medium, and an ultraviolet irradiator 6 mounted on the carriage for irradiating ultraviolet rays.
|Inkjet head device and method of controlling inkjet head|
According to one embodiment, an inkjet device includes: an ink circulating device configured to communicate with an inkjet head to form an ink circulating system; an arithmetic unit configured to calculate, on the basis of pressure detected from the ink circulating system, pressure in an ink discharge port section according to an arithmetic expression set in advance; a pressure determining unit configured to determine, with proper nozzle pressure in the ink discharge port not discharging ink set as a reference value, whether a value calculated by the arithmetic unit is positive pressure or negative pressure with respect to the reference value; and a negative pressure regulator configured to communicate with the ink circulating system and perform, if the pressure determining unit determines that the value is the positive pressure, an ink reducing operation in the ink circulating system and increase a negative pressure value on the ink discharge port. The pressure determining unit changes the reference value to a negative pressure side..
|Printer control method and printer|
A printer has a fluid ejection head, an opening/closing mechanism that is disposed opposite the inkjet head, and suction holes arrayed in the conveyance direction of the recording paper, and opens and closes the suction holes. A printer control method has steps of detecting the position of the leading end of the recording paper before starting conveyance of the recording paper; reading the next recording paper conveyance speed vpf; calculating a delay time td1 for starting the opening/closing mechanism after recording paper conveyance starts based on the position of the leading end of the recording paper and the recording paper conveyance speed vpf; determining the time when the opening/closing mechanism starts operating based on the delay time td1; and starting the opening/closing mechanism at the start time and opening the suction holes..
|Method, inkjet printer, and system for acquiring deviation values of ink landing positions|
A method including acquiring a first deviation value of ink landing positions in each position in a first range from a first pattern printed over the first range of a recording sheet in a scanning direction at a first moving velocity of an inkjet head, acquiring variation information representing a variation in the scanning direction of the first deviation value, acquiring from the variation information a first representative value representing the first deviation value in the first range, acquiring a second deviation value from a second pattern printed over a second range included in the first range at a second moving velocity of the inkjet head, acquiring a second representative value representing a deviation value in the first range at the second moving velocity, based on the second deviation value and a difference between the first representative value and the first deviation value in the second range.. .
An inkjet printer is provided that includes a control device configured to determine ink discharge moments to sequentially discharge ink droplets from a specific one of nozzles, in such a manner that a time interval between any two successive ones of the ink discharge moments is longer than a predetermined time period required for an operation to be executed by an inkjet head when forming a single dot, based on gap variation information related to a variation, in a scanning direction, of a gap between an ink discharge surface and a recording sheet held in a wave shape.. .
|Inkjet recording apparatus|
An inkjet recording apparatus 1 which is able to print high quality images by changing ultraviolet intensity in the sub-scanning direction. The inkjet recording apparatus 1 includes a carriage moving back and forth in the main scanning direction, inkjet heads 5 mounted on the carriage 4 for discharging ink droplets, and an ultraviolet irradiator 6 mounted on the carriage 4 for irradiating ultraviolet rays.
|Inkjet head unit and inkjet recording device|
The object is to provide an inkjet head unit having: head chips having nozzles arranged on nozzle faces, and capable of discharging ink by respective independent pressure generating module from pressure chambers communicating with the nozzles; and a tabular head unit base on which the head chips are arranged and which is capable of holding the head chips, of abutting faces of the head unit base and the head chip, at least one of the abutting face on the head unit base side and the abutting face on the head chip side is formed in a stepped shape, so that the height of the abutting face of the head chip relative to the surface of the head unit base is partially changed, and the head chip is thereby attached to be inclined relative to the surface of the head unit base.. .
An inkjet printer is provided that includes a control device configured to determine an ink discharge moment when an inkjet head discharges an ink droplet from nozzles while moving within at least one of a acceleration range to accelerate the inkjet head and a deceleration range to decelerate the inkjet head, based on a distance between an ink discharge surface of the inkjet head and a recording sheet held in a predetermined wave shape and an amount of change in a moving velocity of the inkjet head.. .
|Method of jetting a liquid crystal, liquid crystal jetting apparatus for performing the method and method of manufacturing a liquid crystal panel using the apparatus|
A method of jetting a liquid crystal includes loading a substrate on a stage, controlling a surface temperature of an inkjet head and a substrate to be a setting temperature, and jetting the liquid crystal molecules on the substrate having the setting temperature.. .
|Inkjet recording apparatus|
An inkjet recording apparatus according to an aspect of the present invention includes: a carriage incorporating an image forming unit which forms an image on a recording medium by ejecting ink from an inkjet head; a scanning device which scans the recording medium by bi-directionally moving the carriage along a direction perpendicular to a direction of conveyance of the recording medium; a platen arranged opposite the carriage and supporting the recording medium from a rear surface side thereof; and a temperature control device carrying out temperature control of the platen by a temperature adjustment mechanism provided on the carriage or is provided detachably, wherein the temperature control device carries out temperature control throughout the whole range of the platen in the width direction, by moving the carriage by the scanning device.. .
|Inkjet printer and method for determining ink discharging timing|
An inkjet printer is configured to acquire gap variation information related to a variation of a gap between a specific portion of an ink discharging surface and a recording sheet as a function of an inkjet head position, the specific portion located within a usage nozzle disposed area where usage nozzle rows to be actually used are disposed, determine representative gap variation information related to a variation, as a function of the inkjet head position, of a representative gap representing actual gaps between the usage nozzle rows and the recording sheet, by multiplying the gap variation information by a correction coefficient dependent on a width of the usage nozzle disposed area in a head moving direction and a wavelength of a wave shape of the recording sheet, and determine ink discharging timing based on the representative gap variation information, assuming that the actual gaps are equal to the representative gap.. .
|Inkjet device and controlling method for inkjet device|
An inkjet recording device includes an inkjet head that is equipped with a nozzle to discharge ink, an ink flow path connected to this inkjet head, an adjustment unit that adjusts the pressure in the ink flow path, and a maintenance unit that wipes the nozzle of the inkjet head, and a control unit that executes a maintenance mode of the inkjet head by controlling the adjustment unit and the maintenance unit. The control unit controls the maintenance unit to wipe the nozzle after the adjustment unit adjusts the pressure inside the ink flow path to a first positive pressure, and then again, after the adjustment unit adjusts the pressure in the ink flow path to a first negative pressure.
|Method and inkjet printer for acquiring gap information|
An inkjet printer including an inkjet head, a head scanning unit, a wave shape generating mechanism to deform a recording medium into a predetermined wave shape, an obtaining device to obtain information concerning a type of the recording medium to be used in a printing operation, a gap information storing device to store gap information related to a gap between an ink discharging surface and the recording medium in association with a predetermined type of the recording medium, the gap information being acquired from a predetermined range in the recording medium, and a correcting device to correct the gap information according to the type of the recording medium obtained by the obtaining device when the type of the recording medium obtained by the obtaining device is different from the predetermined type of the recording medium stored in association with the gap information, is provided.. .
|Inkjet printer and method for acquiring gap information of the inkjet printer|
An inkjet printer, including an inkjet head, a conveyer unit to convey a recording medium in a conveying direction, a position detecting unit to detect a position of the recording medium along the conveying direction, a wave shape generating mechanism to deform the recording medium into a predetermined wave shape along a direction orthogonal to the conveying direction, a gap information storing device to store gap information related to a gap between an ink discharging surface of the inkjet head and the recording medium, and a correcting device to correct the gap information according to a position of the recording medium along the conveying direction, is provided.. .
|Inkjet printer, gap detectable device, and a method to obtain fluctuation of gap levels|
An inkjet printer including an inkjet head with an ink discharging surface, a head scanning unit to drive the inkjet head to reciprocate along a first direction, and a pattern-printing control device to control printing a gap level pattern on a recording medium, is provided. The pattern-printing control device controls the inkjet head and the head scanning unit to print the gap level pattern including a plurality of unit patterns, in each of which the first linear pattern and the second linear pattern intersect each other, aligned along the first direction by manipulating the inkjet head to form a plurality of first linear patterns, which are formed to intersect the first direction, along the first direction, and to form a plurality of second linear patterns, which are formed to intersect the first linear patterns respectively at a same angle, along the first direction..
|Method and inkjet printer for acquiring gap information|
A method is provided that is implemented on a control device connected with an inkjet printer, which includes an inkjet head having an ink discharging surface, a head scanning unit reciprocating the inkjet head relative to a recording sheet along a scanning direction parallel to the ink discharging surface, and a wave shape generating mechanism deforming the recording sheet in a predetermined wave shape that has tops of portions protruding in a first direction toward the ink discharging surface and bottoms of portions recessed in a second direction opposite to the first direction alternately arranged along the scanning direction, the method including acquiring gap information related to a gap between the ink discharging surface and each individual one of the tops and the bottoms on the recording sheet, and determining whether the gap information acquired for each individual one of the tops and the bottoms is abnormal.. .
|Process for production of functional device, process for production of ferroelectric material layer, process for production of field effect transistor, thin film transistor, field effect transistor, and piezoelectric inkjet head|
A method of producing a functional device according to the present invention includes, in this order: the functional solid material precursor layer formation step of applying a functional liquid material onto a base material to form a precursor layer of a functional solid material; the drying step of heating the precursor layer to a first temperature in a range from 80° c. To 250° c.
|Inkjet head and methods for forming same|
According to one embodiment, an inkjet head has a pressure chamber configured to pressurize ink, a nozzle connected to the pressure chamber configured to eject the ink, and an electrode arranged in the pressure chamber. The electrode is configured to receive a driving voltage to deform the pressure chamber in order to apply pressure on the ink.
|Structure body having liquid-repellent surface, nozzle plate of inkjet head, and method of cleaning structure body and nozzle plate|
A structure body has a liquid-repellent surface exhibiting repellency to a liquid. The structure body includes: a substrate which has a base surface; and a plurality of projections which are arranged on the base surface of the substrate.
|Method of controlling printing in a printer, and a printer|
A printer enables setting roll paper in a center-referenced position based on received paper width information, and printing correctly to the printing area of the paper set to the centered position. When the paper width of the paper used for printing is not contained in the received data, the printer sets the paper width of the paper for printing to the maximum paper width.
|Inkjet recording apparatus, image processing apparatus, and image processing method|
An inkjet recording apparatus includes: a registration shift amount setting device configured to relatively set, between inkjet heads corresponding to colors different to each other, a registration shift amount of recording positions in a nozzle row direction of the inkjet heads; an interpolated image generating device configured to generate, in accordance with the registration shift amount, image data of an interpolated image from, among original image data representing tone values of the respective colors, the original image data of one of the colors corresponding to the inkjet head for which the registration shift amount has been set; a halftone processing device configured to generate color-specific halftone images by performing halftone processing on the image data of the interpolated image and the original image data of the other colors; and an ejection control device configured to control ejection operations of the inkjet heads in accordance with the color-specific halftone images.. .
|Color measuring method and recording apparatus|
A color measuring method includes: recording color patterns on a sheet by an inkjet head; measuring colors of the color patterns formed on the sheet; and recovering the inkjet head, wherein the recovering is prohibited within a period after the recording and before the measuring.. .
|Method of supplying fluid to a fluid ejection head, fluid supply mechanism, and fluid ejection device|
A drop in the throughput of continuous printing operations caused by refilling a subtank with ink is suppressed. The control unit of an inkjet printer 1 fills subtanks 11a-11d with ink whenever ink consumption exceeds a reference volume q during continuous printing.
|Inkjet head and method for producing inkjet head|
An inkjet head and a production method wherein the inkjet head is produced by forming a film on a head chip having a channel member with an ink channel formed thereon and joining an end surface of the head chip coated with the film to a nozzle plate. The method includes a step of applying an adhesive containing spherical particles, whose volume average particle diameter is in the range of 0.95*rz (mv) to 2.0*rz (mv), in the range of 0.1 volume % to 10.0 volume % to at least one of the end surface of the head chip and a joint surface of the nozzle plate and then joining the nozzle plate..
|Method and system for ink jet printing images to complex contoured surfaces of ceramic and glass items such as dishware|
A glass or ceramic dishware item with an image disposed thereon is provided. The image is transferred, at ambient temperature, to the surface of the dishware from an ink composite by using a silicone transfer substrate.
|Inkjet head and method of manufacturing the same|
According to an embodiment, an inkjet head includes a nozzle from which ink is ejected, an ink pressure chamber, an oscillating plate, a first electrode, a piezoelectric layer, a second electrode, and a passivation layer. The ink pressure chamber is provided in the inkjet head to supply ink to the nozzle.
|Inkjet head and method of manufacturing the same|
An inkjet head includes a nozzle plate in which a nozzle having an ejection hole for ink is formed, an ink pressure chamber for supplying the ink to the nozzle, a first oscillating plate formed to surround the ejection hole of the nozzle of the nozzle plate, a first electrode formed to surround the nozzle of the nozzle plate and that is in contact with the first oscillating plate, a piezoelectric film configured to surround the nozzle of the nozzle plate and that is in contact with the first electrode, a second electrode formed to surround the nozzle of the nozzle plate and that is in contact with the piezoelectric film or the first oscillating plate, and a second oscillating plate formed to surround the nozzle of the nozzle plate and that is in contact with the first electrode, the second electrode, or the first oscillating plate.. .
|Head maintenance device and inkjet recorder|
A head maintenance device includes a wiping section which wipes a nozzle plane, on which a plurality of nozzles to eject ink are provided, of an inkjet head. The wiping section includes a wiping member including a cloth, an elastic body and a support, in the order named from a side where the wiping section comes into contact with the inkjet head.
|Inkjet head and method of manufacturing inkjet head|
An inkjet head including a substrate configured to discharge ink including a supporting surface formed of a resin material and configured to support the substrate, the supporting substrate including a portion continuing to a surface intersecting the supporting surface and forming a corner portion, the portion forming the corner portion including a non surface treated area which is not surface treated, the supporting surface including a portion adjacent to the non surface treated area being surface treated areas which is surface treated, wherein the substrate and the supporting surface are bonded via an adhesive agent disposed in the non surface treated area and the surface treated area.. .
|Inkjet head and inkjet recording apparatus|
An inkjet head includes an actuator substrate provided with a pressure generating chamber, a nozzle plate provided with multiple nozzle holes discharging liquid to form a nozzle surface opposite to a recording media, a common passage substrate provided with a common passage to supply liquid to the pressure generating chamber, and a cover member to cover a perimeter of the nozzle surface, with an opening to expose the nozzle holes. In a prescribed direction, a dimension of the opening of the cover lc, an external dimension of the actuator substrate la, an external dimension of the nozzle plate ln, and an external dimension of the common passage substrate lm, satisfy inequalities, la≦lc<ln≦lm.
|Inkjet head and inkjet recorder|
According to one embodiment, an inkjet head has a pressure chamber for storing an ink, an actuator for changing the volume of the pressure chamber, and a nozzle through which the ink stored in the pressure chamber is ejected when the volume of the pressure chamber is changed. Additionally, the inkjet head has a temperature sensor for detecting the temperature of the ink and a controller for controlling the actuator by outputting an ejecting waveform.
|Inkjet head and methods of manufacturing the inkjet head|
An inkjet head comprises a pressure chamber, piezoelectric elements, and pressure chamber electrodes disposed on an interior side of the pressure chamber, the pressure chamber electrodes being configured to apply a driving voltage to the piezoelectric elements. The inkjet head also includes a nozzle plate adhered to the frame body with the resin film.
|Inkjet head storage and cleaning|
Inkjet head cleaning and storage includes cleaning an orifice plate by inserting a tip of a shaped wiper into a slit of a printing mask, such that one or more shoulders of a handling end of the shaped wiper are in contact with respectively one or more edges of the slit. The shoulders of the shape wiper facilitate the tip applying a predetermined pressure to an orifice surface during wiping.
|Liquid-droplet ejection device|
A printer includes an inkjet head that includes a plurality of individual flow passages each including a nozzle and a manifold commonly communicating with the plurality of individual flow passages, a heater that heatsink in the manifold, and a temperature sensor that detects a temperature of ink in the manifold. After the heater heatsink in the manifold, liquid droplets are ejected from the nozzles of the inkjet head.
|Image forming method and ink composition|
The present invention provides an image forming method and an ink composition used in the method by which deterioration of a head plate which is formed of silicon is suppressed and more precise images are stably formed, where ink containing an inorganic silicate compound is ejected to form an image from an inkjet head having a nozzle plate where sio2 film is provided on a surface thereof at a side toward the ink ejection direction of the nozzle.. .
|Inkjet head and an inkjet recording device|
According to one embodiment, the inkjet head of an application example includes a pressure chamber for charging the ink, an actuator for changing the volume of the pressure chamber, a nozzle for discharging the ink inside the pressure chamber when the volume of the pressure chamber is changed, and a controller that, in the formation of one pixel by discharging ink drops from the nozzle, when the elapsed interval from discharging ink drops last time by the nozzle is less than the specified interval, outputs the discharging waveform corresponding to the ink drop number determined for the formation of the pixel, and when the elapsed interval is more than the specified interval, increases the number of ink drop discharge cycles above the number determined for the formation of the pixel.. .
|Manufacturing method of inkjet head|
According to one embodiment, forming an electrode part, in which after an electrode is formed on an inner surface of a groove part formed in a substrate of the inkjet head, a smoothed film made of an inorganic material and having an average surface roughness of 0.6 μm or less is formed on a surface of the electrode, and then, an electrode protection film having a thickness of 1.0 μm or more is formed on a surface of the smoothed film; bonding a nozzle plate to an opening end face of a pressure chamber in the groove part by an adhesive after the electrode part is formed; and forming, in the nozzle plate, a nozzle communicating with the pressure chamber by laser machining after the nozzle plate is bonded.. .
|Printer control method and a printer|
A printer and reprinting control method do not reprint when an error accompanied by no damage to the actual printing area or print image on paper occurs so that consumables are not wasted. The printer reprints the label on which the print image was being formed when a specific error occurs if the error occurred while the inkjet head was forming the print image in the actual printing area of the label.
|Through-hole forming method and inkjet head|
A through-hole forming method includes steps of forming a first impurity region (102a) around a region where a through-hole is to be formed in the first surface of a silicon substrate (101), the first impurity region (102) being higher in impurity concentration than the silicon substrate (101), forming a second impurity region (102b) at a position adjacent to the first impurity region (102a) in the depth direction of the silicon substrate (101), the second impurity region (102b) being higher in impurity concentration than the first impurity region (102a), forming an etch stop layer (103) on the first surface, forming an etch mask layer (104) having an opening on the second surface of the silicon substrate (101) opposite to the first surface, and etching the silicon substrate (101) until at least the etch stop layer (103) is exposed via the opening.. .
|Keyboard manufacturing apparatus and method|
Disclosed herein are a keyboard manufacturing apparatus and method that provide improved printing of at least one of a letter, a symbol, a number, and a pattern onto a keycap of a keyboard. The keyboard manufacturing apparatus includes a loader to load a keyboard, an unloader to unload the keyboard, a printing device provided between the loader and the unloader to print at least one of the letter, symbol, number and pattern onto the keyboard, wherein the printing device includes a support on which the keyboard is positioned, and an inkjet unit to print the at least one of the letter, symbol, number and pattern onto the keyboard, wherein the inkjet unit includes an inkjet head containing ink with a color identical to a specific color to be printed onto the keyboard, and a hardeners positioned on one side of the inkjet head to dry the ink..
|Piezoelectric thin film, method for manufacturing same, inkjet head, method for forming image using inkjet head, angular velocity sensor, method for measuring angular velocity using angular velocity sensor, piezoelectric power generation element, and method for generating power using piezoelectric power generation element|
Provided is a piezoelectric thin film including a non-lead-containing (that is, lead-free) ferroelectric material and having high piezoelectric performance comparable to that of pzt, and a method of manufacturing the piezoelectric thin film. The piezoelectric film according to the present invention comprises a laminate structure.
|Piezoelectric actuator, inkjet head assembly and method of manufacturing the same|
There are provided a piezoelectric actuator, an inkjet head assembly, and a method of manufacturing the same. The piezoelectric actuator includes: upper and lower electrodes providing driving voltage; and a piezoelectric substance formed between the upper and lower electrodes through solidifying a liquid piezoelectric substance, and providing driving force to ink in each of a plurality of pressure chambers provided in an inkjet head, wherein the piezoelectric substance includes a plurality of branch portions individually provided on an upper portion of each of the plurality of pressure chambers and a large area portion integrally provided while being connected to each of the plurality of branch portions at one ends of the plurality of branch portions..
|Inkjet recording apparatus|
An inkjet head is provided with an ejection surface on which first and second ejection regions having a plurality of ejection openings ejecting different colors of ink are formed in proximity to each other or to partially overlap each other. A first wiping operation in which, after ink is forcibly ejected only from the first ejection region, the first ejection region is wiped by relative movement of the wiping member in a direction from the second ejection region toward the first ejection region, and a second wiping operation in which, after ink is forcibly ejected only from the second ejection region, the second ejection region is wiped by relative movement of the wiping member in a direction from the first ejection region toward the second ejection region are selectively performed..
|Inkjet recording apparatus including ink receiving assembly|
An inkjet recording apparatus includes an inkjet head to horizontally eject ink droplets to print on a recording medium and an ink receiving assembly to receive ink droplets ejected for dummy ejection from the inkjet head. The ink receiving assembly includes a non-porous ink receiving plate and a collection tank.
|Liquid ejection apparatus and drive method for inkjet head|
A liquid ejection apparatus includes: a gas chamber surrounding a piezoelectric element in an inkjet head; and a dry gas supply device configured to start supply of dry gas to the gas chamber before supply of electric power to the inkjet head is started, to continue the supply of the dry gas while the supply of the electric power to the inkjet head is continued, and to halt the supply of the dry gas after the supply of the electric power to the inkjet head is halted. While the dry gas supply device halts the supply of the dry gas to the gas chamber, a dry gas supply flow channel opening and closing device is closed to disconnect the dry gas supply device and the gas chamber, and a gas return flow channel opening and closing device is closed to disconnect the gas chamber and the external air..
|Inkjet head unit and inkjet apparatus|
There is provided an inkjet apparatus capable of adjusting pressure in an inkjet head to a predetermined slightly negative pressure without limitations on the installation location of a pressure adjustment unit and without stopping the flow of liquid. The inkjet apparatus includes an inkjet head for discharging ink droplets and an ink tank for retaining liquid to the inkjet head.
|Sealant for inkjet head|
Disclosed is a sealant for an inkjet head (1) which can achieve compatibility between shape retention and uniform filling property, (2) in which breaking of members due to material properties in cured product is unlikely to occur, (3) which has good adhesiveness, and (4) which has a long working life. The sealant for an inkjet head contains an epoxy resin having a bisphenol structure and a latent curing agent, in which the sealant for an inkjet head has a coefficient of linear expansion of 80 ppm/° c.
|Driver for inkjet head|
There is provided a driver for an inkjet head, capable of smoothly driving the inkjet head. The driver for an inkjet head includes: an amplifying unit having a plurality of amplifiers individually outputting signals having voltage levels amplified in accordance with a predetermined gain in a predetermined cycle; a coupling unit coupling the signals outputted from the plurality of amplifiers as a single driving signal in accordance with a control signal; a controlling unit controlling the coupling of signals performed by the coupling unit; and a switching unit switching a signal transmission path through which the single driving signal is transmitted to an inkjet head..
|Inkjet ink and inkjet image formation method using same|
Provided is an ultraviolet curable inkjet ink and an inkjet image formation method that uses said inkjet ink. The inkjet ink can be ejected from an inkjet head without being diluted by a solvent, has high photo curing sensitivity and produces high quality images with excellent weather resistance (smear resistance).
|Coating method and coating apparatus|
A coating method includes a step of forming a film of a coating solution having a larger thickness in a central region of a substrate than in an edge region of the substrate by discharging droplets of the coating solution from a plurality of nozzles formed on an inkjet head to the substrate, and a step of moving the coating solution in the film from the central region toward the edge region of the substrate by rotating the substrate. This reduces a difference in thickness of the film between the central region and the edge region of the substrate, thereby to make the film thickness substantially uniform.
|Inkjet printing apparatus|
An inkjet printing apparatus for printing images on printing paper by discharging ink while moving inkjet heads and the printing paper relative to each other. The apparatus includes an inkjet head holder for holding the inkjet heads, a controller for operating a plurality of motors to move the inkjet head holder vertically at least between a printing position and an origin position, and a monitoring unit for monitoring, during a vertical movement caused by the controller, synchronous rotations of the plurality of motors, and corresponding directions of rotation of the plurality of motors..
|Inkjet recording apparatus and method|
An inkjet recording apparatus includes: an inkjet head which has a nozzle and an ejection energy generating element configured to cause droplets to be ejected from an ejection port of the nozzle; a head movement device which is configured to reciprocally move the inkjet head to scan a recording medium onto which the droplets ejected from the inkjet head are deposited; a linear encoder which is configured to output signals to determine a position of the inkjet head; an ejection trigger signal generating device which is configured to generate ejection trigger signals in accordance with the output signals of the linear encoder, the ejection trigger signals specifying ejection timings of the inkjet head with a temporal resolution of 0.1 μs order; and an ejection control device which is configured to cause the inkjet head to eject the droplets in accordance with the ejection timings specified by the ejection trigger signals.. .
According to one embodiment, an inkjet head includes a mask part which covers a periphery of an actuator part in a state where a nozzle hole is exposed to outside and a peripheral edge part of which is opposite to an opening peripheral edge part of a frame part at other end while a gap is kept, and the gap between the peripheral edge part of the mask part and the opening peripheral edge part of the frame part at the other end is sealed with a seal agent having thermal insulation properties.. .
|Inkjet head and method for producing the same|
A flexible wiring circuit board has a second terminal section bonded and electrically connected to a first terminal section of a wiring circuit board of a discharge die. A drive signal is inputted to the first terminal section through the second terminal section, and then sent to a driver ic.
|Inkjet printing apparatus and a purging method therefor|
An inkjet printing apparatus carries out printing by moving an inkjet head and printing paper relative to each other. The inkjet head has a plurality of nozzles for discharging ink droplets.