Patent application number | Description | Published |
20090102907 | Image forming apparatus - An image forming apparatus is disclosed that includes a liquid discharger including a liquid discharge head configured to discharge a droplet of liquid so as to form an image. The liquid discharge head includes multiple individual channels communicating with corresponding nozzles from which the liquid is discharged; a common channel configured to supply the liquid to the individual channels; a deformable member configured to form at least one wall face of the common channel; and a vibration damping member formed of a viscoelastic material, the vibration member being provided in contact with the deformable member. | 04-23-2009 |
20120069071 | IMAGE FORMING APPARATUS SELECTING PULSES TO FORM DRIVE WAVEFORM - An image forming apparatus creates a drive waveform containing a first pulse to discharge the droplet and a second pulse to cause a liquid to flow within a recording head. A data creation part creates data to select a first or second droplet discharge pulse. The first droplet discharge pulse contains the first pulse and the second pulse. The second droplet discharge pulse does not contain the second pulse. When the first or second droplet discharge pulse is selected in a subsequent drive period and when neither the first nor second droplet discharge pulse is selected in a current drive period, the second pulse is selected in the current drive period when selecting the second droplet discharge pulse in the subsequent drive period, and the second pulse is not selected in the current drive period when selecting the first droplet discharge pulse in the subsequent drive period. | 03-22-2012 |
20130070018 | LIQUID-JET HEAD AND LIQUID-JET HEAD DEVICE - A liquid-jet head includes nozzles, pressurized chambers to communicate with the nozzles, a common liquid chamber to communicate with each of the pressurized chambers, each of the common liquid chamber and the pressurized liquid chambers having a negative pressure of a predetermined value, first communicating paths to communicate between the common liquid chamber and the pressurized liquid chamber to serve as a filter to prevent air bubbles from intruding into the pressurized liquid chamber, the filter having openings, each opening having an opening area smaller than an opening area of each of the nozzles, and an air bubble discharge chamber including a second communicating path to communicate with the common liquid chamber having an air bubble remaining part in a region downstream in a liquid flow direction, and an opening part from which the air bubbles having entered via the second communicating path are discharged during a maintenance-restoration operation. | 03-21-2013 |
20130176363 | LIQUID DROPLET EJECTING HEAD AND IMAGE FORMING APPARATUS - A liquid droplet ejecting head is disclosed which includes at least one or more nozzles which eject liquid droplets; one or more dedicated liquid chambers which are communicatively connected to the nozzle; a common liquid chamber which is communicatively connected to the dedicated liquid chamber; and an energy generating unit which generates energy provided to the dedicated liquid chamber, wherein at least one wall face of the common liquid chamber includes a flexible wall, which has flexibility; a buffer chamber is included in an opposing area via the flexible wall and the common liquid chamber; and wherein the buffer chamber is communicatively connected to an external space in an area not opposing the common liquid chamber. | 07-11-2013 |
20140036007 | LIQUID-JET HEAD, LIQUID-JET DEVICE, AND IMAGE FORMING APPARATUS - A liquid-jet head includes nozzles disposed in a predetermined direction and configured to discharge a recording liquid, individual liquid chambers connected to the respective nozzles and configured to supply the recording liquid to the respective nozzles, a common liquid chamber connected to the individual liquid chambers and configured to supply the recording liquid to the individual liquid chambers, an air reservoir space disposed adjacent to the common liquid chamber and configured to retain air, a flexible division wall separating the common liquid chamber from the air reservoir space, a tube unit connected outside the liquid-jet head, a recording liquid supply tube passing through the air reservoir space to divide the air reservoir space into a plurality of spaces and configured to supply the recording liquid to the common chamber, and a connecting unit configured to connect the divided spaces to one another. | 02-06-2014 |
20140071199 | COMPOSITE COMPONENT MOLDING METAL MOLD, DROPLET DISCHARGE HEAD, ELECTRONIC DEVICE, AND IMAGE FORMING APPARATUS - Disclosed is a composite component molding metal mold including a first metal mold for molding a first molded product, and a second metal mold for molding a second molded product. Each of the first and second metal molds includes a movable mold and a stationary mold. Each of the stationary molds includes a male mold and a female mold, and each of the movable molds includes a male mold and a female mold. A cavity for molding the first molded product is formed by a combination of the female mold of the stationary mold and the male mold of the movable mold, and another cavity for molding the second molded product is formed by another combination. A space which is in communication with the cavity and the other cavity is provided. When an insertion member is inserted into the space, the cavity and the other cavity are isolated. | 03-13-2014 |
20140078221 | DROPLET DISCHARGE HEAD, AND IMAGE FORMING APPARATUS - Disclosed is a droplet discharge head including a nozzle substrate including a nozzle, an individual liquid chamber substrate including an individual liquid chamber, and a common liquid chamber substrate including a common liquid chamber, wherein the substrates are laminated, wherein a portion of a top surface of the common liquid chamber is flexible, wherein the top surface of the common liquid chamber is disposed at a side opposite to another side at which the nozzle plate is disposed, wherein the common liquid chamber has a shape such that one portion of the common liquid chamber is narrowed in a direction in which the substrates are laminated, wherein a height of a wall of the common liquid chamber in the direction in which the substrates are laminated is constant, and wherein the wall is substantially perpendicular to the top surface. | 03-20-2014 |
20160075085 | THREE-DIMENSIONAL PRINTING APPARATUS, THREE-DIMENSIONAL OBJECT FORMING METHOD, AND THREE-DIMENSIONAL OBJECT - A three-dimensional printing apparatus for forming a three-dimensional object is provided. The three-dimensional printing apparatus includes a forming unit to supply a powder to form a powder layer and a head to eject liquid droplets of a forming liquid onto the powder layer to bond particles of the powder layer to form a forming layer. The forming unit and the head form laminated forming layers by sequentially repeating forming the powder layer and ejecting the forming liquid to form a between-layers vacant space formed between the two successive forming layers sequentially laminated in the laminating direction. | 03-17-2016 |