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.

A waste liquid box management method sets a type of ink to be contained in a container, for a waste liquid box that includes a coupling portion coupled to a printer, the container containing ink discharged from the printer via the coupling portion, and a storage unit. The waste liquid box management method individually allocates different storage regions, in the storage unit, to a plurality of ink types, writes predetermined type specification data into a selected storage region, that is the storage region allocated to the ink type to be contained in the container, and inhibits writing to the storage region other than the selected storage region in a state in which data other than the type specification data is stored therein.

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 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 arranged in a position surrounded by the frame-shaped wall portion and is extending along an inner end surface of the frame-shaped wall portion.

Disclosed is an inkjet printing apparatus including a connection switching device in a housing having external suction ports and an internal suction port being disposed at an equal distance from the center of rotation of a switching section, the external suction ports being connectable to a plurality of lines, the internal suction port being connected to a suction path for sucking the interior of the housing. The connection switching device selectively connects any of the plurality of external suction ports to the suction device by rotating the switching section Consequently, when the switching section is connected to the internal suction port, the interior of the housing is sucked, whereby ink is sucked from all the inkjet nozzles.

A head maintenance device includes a cap configured to cap a nozzle surface of a head configured to discharge a liquid, a wiper configured to wipe the nozzle surface of the head, a holder configured to vertically movably hold the cap and the wiper to a height at which the cap and the wiper bite into the absorbing member, and a cleaner configured to move relative to the cap and the wiper, the cleaner comprising an absorbing member configured to contact the cap and the wiper.

A liquid ejecting head includes a pressure chamber that communicates with a nozzle which ejects liquid, a liquid chamber that communicates with the pressure chamber, a flexible compliance member that defines a portion of the liquid chamber, and a pressure adjusting mechanism that adjusts a supply pressure of liquid supplied to the liquid chamber. The pressure adjusting mechanism can adjust displacement of the compliance member.

A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid, and a liquid receiving unit which receives the liquid ejected from the liquid ejecting head, in which the liquid receiving unit includes a receiving member which receives the liquid from the liquid ejecting head, a pressure chamber which can communicate with the outside through the receiving member, and a negative pressure generating mechanism which generates a negative pressure in the pressure chamber, and the receiving member is a porous member which seals the pressure chamber by being impregnated with the liquid.

In a printing apparatus, a carriage is reciprocally movable in first and second directions. A control device is configured to perform executing one of first and second printing operations in accordance with an operation mode. The first printing operation prints a first image over a first range in a third direction crossing the first and second directions by ejecting ink from both first and second heads during one movement of the carriage in the first and second directions. The second printing operation prints a second image over a second range narrower than the first range in the third direction by ejecting ink from both the first and second heads during the one movement of the carriage. Ink ejection contribution during the one movement of the carriage is shared by the first and second heads at a prescribed contribution ratio in the second printing operation.

An inkjet recording apparatus includes a recording head including a plurality of nozzles for ejecting ink, a conveyor belt that has a plurality of apertures and conveys recording media one by one, a control unit, an ink receiver, and a pipe-shaped ink discharge flow path. The control unit controls drive of the recording head and the conveyor belt to perform flushing, in which the ink is ejected from the nozzle of the recording head to pass through one of the apertures, at a timing different from a timing contributing to image recording. The ink receiver is disposed to face the recording head sandwiching the conveyor belt therebetween, to receive the ink after passing through the aperture when the flushing is performed. The ink discharge flow path is connected to the ink receiver. When the flushing is performed, a predetermined amount of liquid is stored in the ink receiver.