Patent application number | Description | Published |
20090002444 | Liquid drop ejection head - A liquid drop ejecting head includes a cavity section which is formed by laminating a plurality of plates including at least first and second manifold plates adjacent to each other in a laminating direction. Each of the first and second manifold plates includes an opening. The openings overlap with each other when viewed in the laminating direction. At least one of the openings includes: a first opening which extends in the first direction and serves as a common liquid chamber; a second opening which is adjacent to the first opening and serves as a supply path; and a partitioning portion disposed between the first opening and the second opening. | 01-01-2009 |
20090189961 | LIQUID TRANSFER DEVICE AND MANUFACTURING METHOD THEREOF - A liquid transfer device of the present invention includes a passage unit, an energy supplier, and a supporter. In the passage unit, a common liquid chamber and a plurality of individual passages branching off from the common liquid chamber are formed. Such a passage unit includes a plurality of plates which are laminated on one another and include a first plate having a hole constituting the common liquid chamber and a second plate. The energy supplier supplies, to liquid in the individual passages, energy for transferring the liquid. The supporter projects inwardly from a side wall defining the hole formed on the first plate, and is continuous from one end to the other end of the common liquid chamber in a laminating direction of the plates so as to support the second plate in the laminating direction. | 07-30-2009 |
20090244129 | LIQUID DROPLET JETTING APPARATUS - In a liquid droplet jetting mode of jetting liquid droplets, a controller controls a piezoelectric actuator to perform a liquid droplet jetting operation in which volume of a pressure chamber is decreased to a decreased volume smaller than a predetermined volume, and then the volume of the pressure chamber is increased to an increased volume greater than the predetermined volume, and the volume of the pressure chamber is again decreased to the decreased volume. On the other hand, in a warm-up mode of heating the liquid in the pressure chamber, the controller controls the piezoelectric actuator to perform at least one of a first warm-up operation in which the volume of the pressure chamber is changed repeatedly between the predetermined volume and the increased volume, and a second warm-up operation in which the volume of the pressure chamber is changed repeatedly between the predetermined volume and the decreased volume. | 10-01-2009 |
20090244186 | WIRING UNIT AND FLUID DISCHARGING HEAD HAVING THE WIRING UNIT - A fluid discharging head includes a fluid channel unit, an actuator unit, and a wiring unit. The actuator unit includes a first surface and a second surface opposite the first surface, a first actuator area and a second actuator area, and driving electrodes on the first surface. The wiring unit includes a sheet substrate having an elongated portion, a first substrate area and a second substrate area positioned at opposite ends of the elongated portion of the sheet substrate, feeding terminals positioned at the first substrate area and the second substrate area, a driver positioned at a third substrate area between the first substrate area and the second substrate area, first lines extending from and electrically connecting the driver to the feeding terminals at the first substrate area, and second lines extending from and electrically connecting the driver to the feeding terminals at the second substrate area. | 10-01-2009 |
20090244188 | LIQUID DROPLET EJECTION HEAD AND METHOD FOR MANUFACTURING THE SAME - An object of the present invention is to provide a liquid droplet ejection head capable of securing sealing of a common liquid chamber and realizing a high damper effect while suppressing a driving energy of the liquid droplet ejection head. A passage unit includes manifold plates, and a damper plate which is stacked on the manifold plates and has a damper wall facing a common liquid chamber. The damper plate is constituted by a base portion having a damping space at a position corresponding to the manifold holes in plan view, and a resin portion stacked on the base portion. The resin portion is formed to cover at least a portion above and around the damping space to constitute the damper wall, be smaller in a contour shape than the common liquid chamber in plan view, and be stored in the manifold holes. | 10-01-2009 |
20100033537 | Liquid Discharge Head and Printer - A plurality of pressure chambers are arranged in two arrays in a direction intersecting an extending direction of a common liquid chamber. First pressure chambers of one array and second pressure chambers of the other array are disposed in a staggered arrangement. First and second connecting channels extend, in the intersection direction, from the first and second pressure chambers through areas located between the second and first pressure chambers up to areas outside the common liquid chamber to make communication with the common liquid chamber, respectively. The first and second connecting channels are arranged alternately in relation to the extending direction. Accordingly, both of the insurance of the length of the connecting channel and the small sizing of a head are satisfied. | 02-11-2010 |
20110240762 | WIRING BOARD AND LIQUID JETTING HEAD - A wiring board to be connected to an object includes: contact points to be connected to the object; wires connected to the contact points; and a substrate on which the contact points and the wires are formed. The substrate has a first portion which has openings and overlaps with the object when the wiring board is connected to the object, and a second portion which is continuous to the first portion. The contact points include first contact points formed in the first portion on one surface of the substrate facing the object, and second contact points formed in the second portion, on the other surface of the substrate, at areas which do not overlap with the first contact points when the substrate is bent so that the first portion is overlapped with the second portion. | 10-06-2011 |
20120206542 | LIQUID EJECTION APPARATUS - A liquid ejection apparatus including: a head having: nozzles arranged in a nozzle-row direction; and ejection-energy applying portions; a drive IC for driving the ejection-energy applying portions; a control circuit board for controlling the drive IC; a wiring member on which the drive IC is mounted; and a support member for supporting the wiring member. The wiring member extends toward the control circuit board from a connection portion thereof connected to the ejection-energy applying portions, the wiring member having a first wiring portion extending in a first direction intersecting the nozzle-row direction and a second wiring portion extending in a second direction intersecting the first direction. The support member supports at least one of the first wiring portion and the second wiring portion, the at least one being located between the ejection-energy applying portions and the control circuit board. | 08-16-2012 |
20130076818 | LIQUID JETTING APPARATUS - A liquid jetting apparatus includes: a head unit including a liquid jetting head, a regulating member arranged to sandwich the head unit from a nozzle array direction, a restriction mechanism configured to restrict the head unit from displacement in an orthogonal direction perpendicular to the nozzle array direction, and a landing position correction mechanism configured to correct position of landing the liquid jetted from the plurality of nozzles onto the medium in the orthogonal direction. The restriction mechanism restricts a portion of the head unit inside of outmost nozzle arrays in the orthogonal direction. | 03-28-2013 |
20130257981 | IMAGE RECORDING APPARATUS - An image recording apparatus includes an ink-jet head having a plurality of nozzles and configured to jet ink droplets from the nozzles; a carriage configured to carry the ink-jet head, and reciprocate in a predetermined scanning direction; a transport mechanism configured to transport the recording medium, on which the ink droplets jetted from the nozzles land, in a transport direction intersecting the scanning direction; and a control device configured to control the ink-jet head, the carriage and the transport mechanism to perform recording of the image. The nozzles include a plurality of first nozzles which are aligned at first interval with respect to the transport direction and from which first-type ink droplets are jetted, and a plurality of second nozzles which are aligned at second interval with respect to the transport direction and from which second-type ink droplets different from the first-type ink droplets are jetted. | 10-03-2013 |
20130257993 | LIQUID DROPLET DISCHARGE HEAD - A liquid droplet discharge head includes a plurality of discharge unit parts, each of which extends in a first direction. The discharge unit parts are arranged in a second direction intersecting with the first direction. Each of the discharge unit parts includes: a nozzle column configured by a plurality of nozzles; a liquid droplet discharge surface; a common flow path; a plurality of pressure chambers; a damper chamber extending in the first direction; a damper wall arranged between the damper chamber and the common flow path; and a pillar part connecting the damper wall and a separate wall that is different from the damper wall in the damper chamber. A position of the pillar part of at least one discharge unit part of the discharge unit parts in the first direction is deviated from a position of the pillar part in the other discharge unit part. | 10-03-2013 |
20140292869 | LIQUID JETTING APPARATUS - There is provided a liquid jetting apparatus including: a liquid jetting head including a pressure generating element and a plurality of nozzles arranged in rows in a nozzle-row direction; and a controller. The controller is configured to: determine a basic flushing amount for each nozzle; make the liquid jetting head carry out flushing with the basic flushing amount for inner-side nozzles positioned at an inner side in the nozzle-row direction; and make the liquid jetting head carry out flushing with a flushing amount larger than the basic flushing amount, for outer-side nozzles positioned at an outer side in the nozzle-row direction, of the inner-side nozzles. | 10-02-2014 |
20140292935 | LIQUID DISCHARGE APPARATUS, PIEZOELECTRIC ACTUATOR, AND METHOD FOR PRODUCING LIQUID DISCHARGE APPARATUS - A liquid discharge apparatus includes a flow passage structure in which a liquid flow passage including a nozzle for discharging a liquid and a pressure chamber communicated with the nozzle, and a liquid sealing layer for covering the pressure chamber are formed; and a piezoelectric actuator which is arranged to contact with the liquid sealing layer of the flow passage structure. The piezoelectric actuator includes: an actuator substrate, which is arranged on a surface of the liquid sealing layer on a side opposite to the pressure chamber and which has a vibration layer and a columnar portion arranged between the liquid sealing layer and the vibration layer; and a piezoelectric portion which is formed as a film on a surface of the vibration layer disposed on a side opposite to the columnar portion. | 10-02-2014 |