Patent application number | Description | Published |
20080211868 | Head chip unit and method of producing the same, inkjet head, and inkjet printer - Provided area head chip unit capable of discharging a plurality of kinds of ink, down sizing, and of printing by the plurality of kinds of ink. A head chip unit includes a head chip having a substantially plate shape including: a channel extending from one edge side to another edge side to be opened on the another edge side; and an ink chamber formed in an arrangement direction orthogonal to a supply direction for forming the channel and communicating with the channel on the one edge side, the head chip being laminated in multiple. In the head chip unit, the ink chamber of at least one of the head chip includes a supply part formed until a position where the supply part is not overlapped with the channel and the ink chamber of another head chip in a laminating direction of the head chip, the another head chip being laminated on a surface of at least one of the head chip; and the another head chip laminated on the surface of at least one of the head chip including the supply part, includes an ink supply hole which is formed so that the ink supply hole is opened on the one side and penetrates the head chip so as to communicate with the supply part. | 09-04-2008 |
20080266338 | Method of driving an ink-jet head, ink-jet head, and ink-jet recording apparatus - Provided is an ink-jet head and an ink-jet type recording apparatus for improving an impact position accuracy of ink droplets by eliminating a discharge speed difference of ink droplets when an ink volume is changed gradually in a plurality of steps to perform gradation expression. Among discharge pulse signals to be applied a plurality of times for gradually changing and discharging the ink droplet volume, a signal waveform of a final drive pulse and a signal waveform of an initial drive pulse to be operated at least once before the final drive pulse, are varied from each other so as to establish a predetermined relation therebetween. | 10-30-2008 |
20090109263 | Inkjet head, manufacturing method for the same, and inkjet recording apparatus - In order to provide an inkjet head easily manufactured while saving material costs and processing costs, and a manufacturing method for the same, an inkjet head comprises a first piezoelectric substrate which includes a plurality of first groove portions formed on one surface thereof and an ink supply path which is connected to the plurality of first groove portions and opens toward another surface thereof. A second piezoelectric substrate is bonded to the first piezoelectric substrate and includes a plurality of second groove portions forming ink chambers together with the plurality of first groove portions on a bonding surface between the first piezoelectric substrate and the second piezoelectric substrate. Drive electrodes are formed on side walls of the first groove portions and side walls of the second groove portions. | 04-30-2009 |
20090185010 | Inkjet head chip, driving method for inkjet head chip, inkjet head, and inkjet recording apparatus - To achieve a uniform ink discharge speed, there is provided an head chip including a plurality of channels partitioned with piezoelectric elements and formed parallel to each other, in which: the channels include a discharge channel disposed in a middle portion of the channels in a channel parallel direction and a dummy channel disposed in each of both end portions of the channels in the channel parallel direction; the discharge channel communicates with an ink chamber via an ink introduction hole and with the nozzle hole; one of discharge of the ink droplet from the dummy channel toward the recording medium and supply of the ink from the ink chamber to the dummy channel is interrupted; and one of the piezoelectric elements which is adjacent to the discharge channel, and one of the piezoelectric elements which is adjacent to the dummy channel are each applied with a voltage. | 07-23-2009 |
20090185012 | Inkjet head chip, manufacturing method for inkjet head chip, inkjet head, and inkjet recording apparatus - Provided is an inkjet head chip including: an ink chamber for containing ink; a plurality of piezoelectric elements deformable by applying a voltage; a plurality of channels partitioned with the plurality of piezoelectric elements and formed parallel to each other; a nozzle hole disposed in one end of the channel in a longitudinal direction, for discharging an ink droplet toward a recording medium; and an actuator plate including the plurality of channels formed therein, in which: the actuator plate has a structure in which at least a piezoelectric layer and a low-permittivity substrate layer are laminated together, the piezoelectric layer being formed of a piezoelectric material forming the plurality of piezoelectric elements, the low-permittivity substrate layer being formed of an insulating low-permittivity material having a lower permittivity compared with the piezoelectric material; and the insulating low-permittivity material is exposed on bottom surfaces of the plurality of channels. | 07-23-2009 |
20090309935 | Head chip, liquid jet head, and liquid jet device - To prevent an adhesive from flowing into nozzles, there is provided a head chip includes: a plate having a plurality of grooves; a cover plate having an introduction aperture; a nozzle plate fixed to an end surface of the plate, and has nozzles formed at the same intervals; and escape holes formed between the nozzle plate and the plate, each have a contour which surrounds a periphery of each of the nozzles with the contour being spaced apart from a contour of each of the nozzles by at least a given distance, accumulate the adhesive remaining at a time of fixing the nozzle plate therein, and allow the nozzles and the grooves to communicate with each other. The nozzles and the escape holes are so arranged as to be displaced from adjacent nozzles and adjacent escape holes by a given distance in a vertical direction of the nozzle plate. | 12-17-2009 |
20090315946 | Head chip, liquid jet head, and liquid jet device - To prevent an adhesive from flowing into nozzle, there is provided a head chip including: an actuator plate having a plurality of grooves; a drive electrode formed on each side wall of the grooves; a cover plate which has an introduction aperture; a nozzle plate fixed to an end surface of the actuator plate through an adhesive, and has a plurality of nozzles which communicate with the of grooves, respectively; and a number of escape holes formed between the nozzle plate and the actuator plate, corresponding to the nozzles, in which each escape hole has a contour which surrounds a periphery of each nozzle with the contour being spaced apart from a contour of each nozzle by at least a given distance, and in which the adhesive remaining at a time of fixing the nozzle plate is accumulated in the escape holes. | 12-24-2009 |
20090315957 | Head chip, liquid jet head, liquid jet recording device, and method of manufacturing the head chip - Provided is a head chip ( | 12-24-2009 |
20100141711 | Liquid-jet head chip, liquid-jet head, and liquid-jet recording apparatus - To discharge a liquid from each of liquid discharge flow paths without being affected by an operating state of the other liquid discharge flow paths, a liquid-jet head chip includes: an actuator substrate including a plurality of discharge grooves each being open on one surface of the actuator substrate, and the plurality of discharge grooves being formed in parallel at a distance from each other; a cover plate substrate including a common ink chamber being open on a surface of the cover plate substrate on a side opposite to the actuator substrate and a plurality of slits extending from the common ink chamber to be in communication with the discharge grooves; and a filter having a flat surface at an approximately constant distance from ends of all the slits, the structure being located at a position at which an opening of the common ink chamber is substantially closed. | 06-10-2010 |
20100141721 | Liquid-jet head chip, liquid-jet head, and liquid-jet recording apparatus - To simplify a head-chip is provided with an actuator including grooves and a cover plate bonded onto the one surface of the actuator and including an opening portion including an ink chamber having an aperture plane being open on an upper end surface and slits extending from the ink chamber to be in communication with the grooves, and an flow path for bringing the upper end surface and one end surface extending in a thickness direction into communication with each other, the opening portion and the flow path being provided independently of each other. In the head-chip, foreign substance removal filter for removing a foreign substance is provided at a position at which the aperture plane of the ink chamber is substantially closed, and a filter for allowing passage of air bubbles, is provided at a position at which an opening of the flow path is substantially closed. | 06-10-2010 |
20110102519 | Liquid jet head, liquid ejection apparatus, and manufacturing method for the liquid jet head - Provided is a liquid jet head ( | 05-05-2011 |
20110109703 | Liquid jet head, liquid jet apparatus, and manufacturing method for the liquid jet head - Provided is a liquid jet head ( | 05-12-2011 |
20110242223 | Liquid jet head and liquid jet apparatus - The liquid jet head ( | 10-06-2011 |
20110292115 | Liquid jet head and liquid jet apparatus - To increase yields of a connection process, the following structure is employed in which first electrode terminals ( | 12-01-2011 |
20110292135 | Liquid jet head, liquid jet apparatus, and manufacturing method for the liquid jet head - To solve a problem in that it is difficult to form drive electrodes ( | 12-01-2011 |
20120062658 | Liquid jet head, liquid jet apparatus, and method of manufacturing liquid jet head - The liquid jet head ( | 03-15-2012 |
20120113174 | Liquid jet head, liquid jet apparatus, and method of driving a liquid jet head - A liquid jet head ( | 05-10-2012 |
20120121797 | Liquid jet head, liquid jet apparatus, and method of manufacturing a liquid jet head - A liquid jet head includes an actuator substrate having grooves, and a flexible substrate for supplying a drive signal to the actuator substrate. On a surface of the actuator substrate, in the vicinity of a rear end thereof, are formed a common extension electrode and an individual extension electrode connected to drive electrodes of a discharge channel and dummy channels, respectively. The common extension electrode and the individual extension electrode are connected to a common wiring electrode and an individual wiring electrode of the flexible substrate, respectively. In a common wiring intersection region in which the common wiring electrode of the flexible substrate intersects the drive electrodes of the actuator substrate, upper end portions of the drive electrodes on side surfaces of the dummy channels are formed deeper than the substrate surface. | 05-17-2012 |
20120212548 | METHOD OF MANUFACTURING LIQUID JET HEAD, LIQUID JET HEAD, AND LIQUID JET APPARATUS - A method includes a stacked substrate forming step (S | 08-23-2012 |
20120246932 | METHOD OF MANUFACTURING A LIQUID JET HEAD - Provided is a method of manufacturing a liquid jet head ( | 10-04-2012 |
20130002766 | LIQUID JET HEAD, LIQUID JET APPARATUS, AND METHOD OF MANUFACTURING LIQUID JET HEAD - Provided is a highly durable liquid jet head capable of improving conversion efficiency in converting deformation of side walls ( | 01-03-2013 |
20130002769 | LIQUID JET HEAD, LIQUID JET APPARATUS, AND METHOD OF MANUFACTURING LIQUID JET HEAD - A liquid jet head ( | 01-03-2013 |