A method of manufacturing a water repellent member includes forming a base layer on a foundation material, forming projections on the base layer such that the projections are dispersed, and forming a water repellent film that contains a perfluoropolyether compound, and that is in contact with the base layer and the projections. The projections contain a main component whose covalent binding index is larger than a covalent binding index of a main component of the base layer.

A head cleaning mechanism of the disclosure includes a recording head and a wiper. The recording head includes an ink ejection surface in which an ink ejection area with a plurality of ink ejection ports opened therein is provided. The wiper wipes the ink ejection surface in a specified direction. The recording head includes an inclined surface placed on an upstream side of the ink ejection surface in a wiping direction that is a direction in which the wiper wipes the ink ejection surface, the inclined surface being inclined downward toward a downstream side of the wiping direction. A plurality of cleaning liquid supply ports for supplying cleaning liquid are provided on a wiping-direction upstream side of a position in the inclined surface with which the wiper makes contact during wiping operation.

A liquid ejecting head maintains stable ejecting operations without causing kogation. To achieve such operations, the liquid ejecting head includes, in its liquid chamber, a first electrode placed so as to cover a heating resistor, a second electrode placed at a position different from that of the first electrode, and a third electrode. In a case where the heating resistor is driven, a voltage is applied between the first electrode and the second electrode so that the first electrode has the same polarity as that of a predetermined liquid component, and the second electrode has the opposite polarity. In a case where the heating resistor is not driven, a voltage is applied between the second electrode and the third electrode so that the second electrode has the same polarity as that of the predetermined component, and the third electrode has the opposite polarity.

A liquid discharge head includes a head body, a cover, a rib, and a sealer. The head body discharges liquid. The head body includes a frame. The cover is mounted on the frame of the head body. The rib is disposed at the frame along a peripheral surface of the cover. The sealer is disposed between the peripheral surface of the cover and a peripheral surface of the rib.

A liquid ejection apparatus includes a liquid ejection head including a nozzle forming face in which a plurality of nozzles through which liquid is ejected toward a droplet landing object are formed, and a protruding face protruding toward the droplet landing objet and disposed so as to surround the nozzle forming face, and a cap body including a bottom plate and a wall extending upwardly from the bottom plate and configured to seal the nozzle forming face within a sealing space formed by bringing a top portion of the wall into contact with the protruding face. Further, at minimum, a portion included in the wall and being brought into contact with the protruding portion is an elastic member including liquid repellency.

A liquid discharge head is configured to achieve decrease in temperature difference in the liquid discharge head, and includes a recording device including the liquid discharge head. The liquid discharge head includes a channel member having a plurality of discharge holes, a plurality of pressurization chambers, and a plurality of common channels, and a plurality of pressurizing parts. The plurality of common channels extends in a first direction and configures a common channel group aligned in a second direction crossing the first direction, the common channels are connected with the plurality of pressurization chambers disposed along the common channels among the plurality of pressurization chambers, and the channel member is disposed outside, in the second direction, with respect to the common channel group, and further includes a first end channel extending in the first direction, and the first end channel is lower in channel resistance than the common channels.

According to one embodiment, an inkjet head includes a plurality of actuators on a substrate in a row and spaced from each other, each actuator extending from the substrate to form a chamber space between each adjacent pair of actuators in the plurality of actuators, a flow passage block including a frame portion surrounding an outer periphery of the plurality of actuators and a blocking portion having protrusions sealing both ends of the chamber spaces between every other adjacent pair of actuators along the row, and a common ink chamber above the flow passage block and in fluid communication with the chamber spaces between any adjacent pairs of actuators not sealed at both ends by the blocking portion with a plurality of chamber spaces.

An ink-jet recording apparatus of the present disclosure includes a recording head, a cap portion, and a moisture-retaining agent supply mechanism. The cap portion caps the recording head. The moisture-retaining agent supply mechanism includes a moisture-retaining agent housing portion that houses a moisture-retaining agent to be supplied into the cap portion, a communication path through which the moisture-retaining agent being supplied from the moisture-retaining agent housing portion to the cap portion passes, a moisture-retaining agent tank that houses the moisture-retaining agent in a liquid state, a supply path through which the moisture-retaining agent being supplied from the moisture-retaining agent tank to the moisture-retaining agent housing portion passes, and a discharge path through which part of the moisture-retaining agent passes, which has overflowed inside the moisture-retaining agent housing portion and returns from the moisture-retaining agent housing portion to the moisture-retaining agent tank.

An image forming apparatus includes a recording head and a wiper. The recording head is provided with a nozzle region where a plurality of ink ejection ports are opened downward. The wiper comes into contact with the nozzle region and moves in a predetermined direction to wipe the ink ejection ports. A head mounting part protruding outward is provided along the wiping direction on a side surface of the recording head at a position higher than the nozzle region. The head mounting part has: an outside portion having a water repellency higher than that of the side surface; and an inside portion provided inside the outside portion and having a water repellency smaller than that of the outside portion.

A functional film contains an inorganic material as a main component and having a fine uneven structure on a surface. In a vertical cross section in a film thickness direction, a plurality of projections constituting the fine uneven structure is formed in a stepped shape having one or more stages, the functional film satisfies the following Formula (I): 10?X?Y, where X is a Mohs hardness of the inorganic material, and an integer Y is the number of stages of the projections, and an average height from an lowermost bottom of lowest-stage projections of the plurality of projections to an outermost surface of highest-stage projections of the plurality of projections is 1 ?m or less.