Abstract: A liquid discharge apparatus includes: a liquid discharge head having a nozzle; a storage chamber that stores liquid; a supply channel communicating with the liquid discharge head and an outlet of the storage chamber; a return channel communicating with the liquid discharge head and an inlet of the storage chamber; a first pump that is provided in the supply channel and feeds the liquid stored in the storage chamber to the liquid discharge head; a gas channel connected to the storage chamber; a second pump that is connected to the storage chamber via the gas channel and discharges gas from inside the storage chamber; and a controller. The controller continues driving of the first pump and driving of the second pump in a first period, and stops the driving of the second pump with the driving of the first pump being continued, in a second period after the first period.

Abstract: Provided is an ejection apparatus including: an ejection head having an ejection opening for ejecting an ejection material in a liquid state; a storage container storing therein the ejection material and communicating with the ejection head; and a pressure control unit that maintains the pressure inside the storage container at a negative pressure. The pressure control unit generates a first pressure in the storage container in a normal operation, the first pressure being capable of forming a meniscus of the ejection material in the ejection opening. The pressure control unit drops the pressure inside the storage container to at least the first pressure in a case where the pressure inside the storage container reaches a predetermined pressure above the first pressure.

Abstract: A liquid ejection head includes an individual channel, a first manifold, a filter, a second manifold, and a bypass path. The individual channel has a nozzle. The first manifold is in fluid communication with the individual channel. The filter is disposed in the first manifold. The second manifold is in fluid communication with the individual channel. The bypass path is positioned between the individual channel and the filter in a direction in which liquid flows. The bypass path extends from the first manifold. The bypass path provides fluid communication between the first manifold and the second manifold not via the individual channel.

Abstract: A width of the first nozzle channel in the first direction is larger than a width of the first communication channel in the second direction and a width of the first nozzle channel in a third direction intersecting the first direction and the second direction is smaller than a width of the first communication channel in the third direction.

Abstract: The instant invention is related to a method for replicating an object. The method includes providing an object comprising an outer surface and a channel; applying dry tannin powder to the outer surface of the object wherein at least a portion of the dry tannin powder adheres to the outer surface as imaging tannin; and placing an aqueous solution of an iron salt in the channel wherein the iron salt diffuses through the object to convert said imaging tannin into a replica of the object.

Abstract: There is provided a head unit including: at least two head modules, and at least one head module. The head unit further includes: a tank; a first and second tubes; and a joint unit including at least one first joint which includes a first port connected to the first tube and a second port connected to the second tube, and which relays the first tube and the second tube to each other. The first port of the at least one first joint extends in one side in a third direction orthogonal to the first direction and the second direction.

Abstract: A liquid discharge apparatus includes a plurality of head units each of which includes a plurality of heads configured to discharge a liquid, and a plurality of temperature-controlled liquid supply manifolds each of which is configured to distribute the temperature-controlled liquid to the plurality of heads of one of the plurality of head units. The liquid discharge apparatus further includes a conveyor configured to convey a sheet onto which the liquid is applied by the plurality of head units, and the conveyor defines a sheet conveyance passage opposite the plurality of head units. At least one of the plurality of temperature-controlled liquid supply manifolds is disposed between two of the plurality of head units and in a vicinity of the sheet conveyance passage.

Abstract: There is provided a head module including: a liquid discharging head; a driver IC; a heat sink; and a fan. The head module includes: a channel unit; and an energy-applying mechanism. The heat sink includes: a base part; and a plurality of fins including: a first fin, a second fin, and a third fin. A plane direction of a plane in which the first fin expands crosses a plane direction of a plane in which the second fin expands, and crosses a plane direction of a plane in which the third fin expands. The fan is arranged at a position at which the fan overlaps with the base part in the first direction, and in a space surrounded by the first fin, the second fin, the third fin and the base part.

Abstract: An inkjet printing apparatus includes a first and second tanks, and a printer section including an inkjet head which ejects ink droplets toward a printing medium. The inkjet printing apparatus includes a first supply system which supplies ink from the first tank to the second tank, a second supply system which includes an ink supply pump and supplies ink from the second tank to the printer section, and a remaining amount detection unit which detects the amount of ink remaining in the first tank. The remaining amount detection unit calculates the amount of ink transferred from the first tank to the second tank in a measurement period during which ink is supplied from the first tank to the second tank, based on an increase in the amount of the ink stored in the second tank in the measurement period and the operation state of the pump in the measurement period.

Abstract: In one embodiment, a high-speed, closed-loop fabric printer comprises a plurality of consecutive stations that can be managed by a single operator. In particular, shirts or other fabric garments may be individually loaded and secured on a pallet by an operator, and the loaded pallets may then cycle through a plurality of unmanned stations positioned along a contiguous path (e.g., oval). The stations may be configured for pretreating the fabric surface, drying and pressing the pretreated fabric with heat, and then inkjet printing a selected image, among others. In this manner, a “wet-to-dry-to-wet” direct to garment (DTG) printing process may thus be achieved, along with optimal controls for maximum adaptability. Furthermore, due to the closed-loop design, a recently printed fabric product returns to the operator to be unloaded at the position in which a new unprinted fabric is loaded, allowing for increased throughput and minimal operator requirements.

Abstract: An ink head includes: a common ink chamber; a first nozzle including a first nozzle hole, a first flow channel and the common ink chamber, and a first actuator; and a second nozzle including a second nozzle hole, a second flow channel and the common ink chamber, and a second actuator, the second nozzle being adjacent to the first nozzle in a first direction. The first flow channel is linked to the common ink chamber via a first opening. The second flow channel is linked to the common ink chamber via a second opening. A center position of the first opening is shifted from a center position of the second opening in at least a third direction, the third direction crossing the first direction when viewed along a second direction, the second direction being from the common ink chamber toward the first flow channel.

Abstract: In a continuous ink jet printer for use with pigmented ink, the entrance to the ink path (81), (35) from the interior of the ink tank (27) to the ink pump (31) is made up of a plurality of small inlet openings, which may be provided by nozzles 85 formed in a shroud 83 that fits around an ink filter (33) in the ink tank (27). The openings are provided at the bottom of the ink tank (27), close to the floor, and face parallel to the floor or at least partially towards it. If the ink pump (31) is driven in reverse, any ink in the ink path is driven at speed out through the inlet openings into the interior of the ink tank (27), followed by air. This tends to disperse pigment that may have settled to the bottom on the ink tank (27).

Abstract: A liquid ejecting head including: an individual flow path row in which a plurality of individual flow paths communicating with a nozzle that ejects a liquid in a first axis direction are arranged in parallel along a second axis orthogonal to a first axis, and a first common liquid chamber communicating with the plurality of individual flow paths, in which each of the plurality of individual flow paths has a pressure chamber that stores a liquid.

Abstract: A liquid ejecting head including: an individual flow path row in which a plurality of individual flow paths communicating with a nozzle that ejects a liquid in a first axis direction are arranged in parallel along a second axis orthogonal to a first axis, and a first common liquid chamber communicating with the plurality of individual flow paths, in which each of the plurality of individual flow paths has a pressure chamber that stores a liquid.

Abstract: In an example, a device includes a display, a stand, and a printing device. The stand is positioned beneath and supports the display, and has a cylindrical shape. The printing device is housed within the stand and includes a spindle, a roller, a fluid ejection die, and a cutting mechanism. The spindle supports a roll of paper. The roller unrolls the paper from the roll of paper. The fluid ejection die ejects fluid onto the paper as the paper unrolls from the roll of paper. The cutting mechanism severs a portion of the paper from the roll of paper.

Abstract: A printing apparatus includes a conveyance unit for conveying a print medium fed from a feeding apparatus, a detection unit for detecting the fed print medium, a printhead, provided downstream of the detection unit with respect to a conveyance direction of the print medium, for printing an image by discharging ink to the conveyed print medium, and a heating unit, provided downstream of the printhead with respect to the conveyance direction, for heating the print medium on which the image is printed. The printing apparatus exclusively controls to stop driving of the heating unit if it is determined, based on a timing of detecting the print medium, that the print medium is at a print position, and to drive the heating unit if it is determined that the print medium is not at the print position.

Abstract: The liquid L flowed into the bypass communication pipe 93 from the feed reservoir 91f can be returned to the feed reservoir 91f by way of the return reservoir 91r by carrying out the bypass circulation of circulating the liquid L along the bypass circulation channel Cb. Since this bypass communication pipe 93 bypasses the discharge heads H, the liquid L does not pass through the discharge heads H in the bypass circulation. As a result, the liquid L can be circulated between the feed reservoir 91f and the return reservoir 91r while the mixing of foreign substances into the discharge heads H from the respective reservoirs 91f, 91r is suppressed.

Abstract: An example device includes a first chamber to contain a first fluid and a second chamber to contain a second fluid. The first chamber includes a first fluid outlet, and a first bubbler to ingest bubbles into the first chamber when pressure in the first chamber overcomes a first bubble pressure of the first bubbler. The second chamber includes a second fluid outlet, and a second bubbler to ingest bubbles into the second chamber when pressure in the first chamber overcomes a second bubble pressure of the second bubbler. An outlet node is fluidly connected to the first fluid outlet and the second fluid outlet. The outlet node draws the first fluid from the first chamber when the first bubbler ingests bubbles, and sequentially draws the second fluid from the second chamber when the second bubbler ingests bubbles.

Abstract: The disclosure concerns an applicator (e.g. print head) for applying a coating agent (e.g. paint) to a component (e.g. motor vehicle body component), having a nozzle chamber with a plurality of nozzles for dispensing the coating agent in the form of continuous jets or droplets, the coating agent flowing during operation through the nozzle chamber to the nozzles so that the nozzle chamber is filled with the coating agent during operation. The print head further comprises a plurality of slidable valve needles associated with the individual nozzles and selectively opening or closing the respective nozzle depending on the position of the valve needles. Furthermore, the print head according to the disclosure contains an actuator chamber for receiving actuators for displacing the valve needles.

Abstract: A manufacturing method for a printed matter exhibiting metallic gloss includes an applying step of applying an ink composition onto a substrate in a form of a droplet by an inkjet method, and the ink composition containing an external stimulus film-forming resin that forms a film by an external stimulus including radiation or heat, and scaly particles containing a metal; a standby step of providing a predetermined standby time to bring the scaly particles close to a surface of the droplet and orient the scaly particles to be substantially parallel to the surface; and a film forming step of forming the film by applying the external stimulus to the ink composition after the standby step to form a metallic glossy layer exhibiting metallic gloss.