A liquid discharge apparatus includes a liquid discharger, a discharge receptacle, and circuitry. The liquid discharger includes a nozzle configured to discharge liquid. The discharge receptacle is configured to receive the liquid discharged from the liquid discharger. The circuitry is configured to control a flushing operation of the liquid discharger. The circuitry is configured to cause the liquid discharger to perform flushing to the discharge receptacle and a sheet to which the liquid is applied, with a first flushing amount and a second flushing amount different from the first flushing amount, respectively.

A print device includes a processor and a memory. The memory storing computer-readable instructions which, when executed by the processor, perform processes. The processes include covering processing controlling a cap into a covering state in which the cap covers a nozzle. The processes include first purge processing purging, in a state in which the cap is in the covering state and a supply valve is closed, an ink from the nozzle by operating a pump at a first rotation speed. The processes include injection processing injecting, after the first purge processing and in a state in which the cap is in the covering state and the supply valve is open, the cleaning liquid into the interior of the cap by operating the pump at a second rotation speed to cause the cleaning liquid to soak a nozzle face.

An inkjet printing and an inkjet printing method are provided. The inkjet printing device includes a stage comprising a substrate mounting part configured to receive a target substrate mounted thereon, a print head unit located above the stage and configured to spray an ink including a plurality of particles, and a suction device located at a side of the substrate mounting part and configured to generate negative pressure thereon.

Provided is a maintenance device that performs maintenance of a recording head with a nozzle face on which an opening of a nozzle for ink discharge is provided. The maintenance device includes a scraper that scrapes ink that adheres to the nozzle face, and an ink receiver that receives ejected ink that is ejected through the nozzle and scraped ink that is scraped off by the scraper. The ink receiver includes a first face and a second face that are each inclined with respect to a horizontal plane. The ink receiver receives the ejected ink at least on the first face of the first face and the second face, and receives the scraped ink on the second face. A flowability of ink on the second face is greater than a flowability of ink on the second face.

Disclosed is an inkjet head cleaning unit including a body, an ejection unit formed in the body, and that ejects a cleaning fluid for cleaning a nozzle surface of a head, a suction unit formed in the body, and that suctions the cleaning fluid used for cleaning the nozzle surface of the head and foreign substances separated from the nozzle surface of the head, and a central body provided between the ejection unit and the suction unit, and height of the central body is adjusted in a vertical direction.

An air priming system is described that can prime printer fluid of one or more printer fluid tanks of a printer. The air priming system includes multiple priming units that are coupled together so as to be rotated or otherwise adjusted together to be paced into one of a plurality of priming stages. In each of the plurality of priming stages, air flow is either allowed or blocked through specific priming units.

An ink jet printing method includes an application step of ejecting a coloring ink composition functioning to color a printing medium through an ejection opening of a first ink jet head to apply the coloring ink composition onto a printing medium, and an application step of ejecting a non-coloring composition different from the coloring ink composition through an ejection opening of a second ink jet head to apply the non-coloring composition onto the printing medium. The coloring ink composition is circulated through a circulation path connected to the first ink jet head after being fed into the first ink jet head and before being ejected through the ejection opening of the first ink jet head. The non-coloring composition is not circulated through a circulation path after being fed into the second ink jet head and before being ejected through the ejection opening of the second ink jet head.

There is provided a liquid discharge apparatus including a discharge head including nozzles and actuators; a liquid detecting sensor; and a controller. The controller is configured to: cause the actuators to perform a discharge operation; calculate a discharge amount of the liquid discharged from each of the nozzles; determine the discharge amount of the liquid; and cause a first actuator corresponding to a first nozzle, whose discharge amount is less than a first predetermined amount, and a second actuator corresponding to a second nozzle, whose discharge amount is not less than the first predetermined amount and less than a second predetermined amount, to perform a flushing, without causing a third actuator corresponding to a third nozzle, whose discharge amount is not less than the second predetermined amount, to perform the flushing.

A print device includes a head, a cap, a suction portion, an absorption member, and a plate-shaped member. The head has an ejection surface. The ejection surface has a plurality of nozzles formed in the ejection surface and is directed in a predetermined direction. The cap has a frame-shaped wall portion and a suction opening. The suction portion is connected to the inside of the cap via the suction opening. The absorption member is arranged in a position surrounded by the frame-shaped wall portion and is configured to absorb liquid. The plate-shaped member is surrounded by the frame-shaped wall portion and is arranged in a position facing the absorption member. The plate-shaped member is extending along an inner end surface of the frame-shaped wall portion and has a hole.

A liquid ejecting head includes: a head main body for ejecting liquid from nozzle openings on a liquid ejecting surface provided with the plurality of nozzle openings; a maintaining member which is adhered to the head main body at a surface side opposite to the liquid ejecting surface side of the head main body in a direction perpendicular to the liquid ejecting surface; and a fixing board which is provided at a side opposite to the maintaining member with respect to the head main body. The fixing board includes a bending portion which is bent to the head main body side. The bending portion is adhered to a side surface of the maintaining member. The head main body is disposed in a space formed by adhering the maintaining member and the fixing board to each other.