Abstract: An image recording apparatus including: (a) a head assembly including (a-1) recording heads having respective nozzle opening surfaces and (a-2) a head frame supporting the recording heads; (b) annular protrusions each of which is to be brought into contact with the head assembly, so as to surround the plurality of nozzles opening in the corresponding nozzle opening surface; (c) a supporting tray elongated in a supporting-tray longitudinal direction and supporting the annular protrusions; (d) a movement mechanism configured to move the head assembly and/or the supporting tray, and (e) a positioning pin projecting from a pin-located portion of the supporting tray. The pin-located portion is outside the annular protrusions, and is located in a center of the supporting tray in the supporting-tray longitudinal direction. The head frame has a positioning hole, into which the positioning pin is to be introduced upon contact of each annular protrusion with the head assembly.

Abstract: A liquid jetting apparatus includes a casing, a tank formed with a liquid storage chamber which stores liquid, an inlet which allows the liquid to be poured into the liquid storage chamber, and a liquid outflow channel which allows the liquid to flow out from the liquid storage chamber, a conveying mechanism which conveys a recording medium along a conveying path extending in a front-rear direction, a carriage which moves in a left-right direction, and a head mounted on the carriage and having a nozzle which jets the liquid onto the recording medium conveyed by the conveying mechanism. The tank, the conveying path, and the carriage are arranged inside the casing, the tank is arranged outside the conveying path in the left-right direction, and at least a part of the tank is arranged inside both ends of a movement area of the carriage in the left-right direction.

Abstract: A liquid ejection apparatus including: a liquid ejection head and ejection openings; a tank; an air communication device; a supply channel; a return channel; a supply device; an adjusting device; and a controller, wherein the controller performs a liquid circulation control by controlling: the adjusting device such that a channel resistance value of the return channel is less than a predetermined maximum value; and the supply device to supply the liquid into the inside channel, wherein, when the liquid is circulated by the liquid circulation control, the controller starts a liquid discharge control for discharging the liquid by making the channel resistance value larger than that in the liquid circulation control, and wherein the controller controls the air communication device such that an inside of the tank is interrupted from the ambient air in at least a part of a period of the liquid circulation control.

Abstract: A liquid ejecting apparatus, including: a head having an ejection surface; a head holder; a capping mechanism for capping the ejection surface, having: a facing member with a facing surface to face the ejection surface; and a protrusion provided on the head holder for isolating, from an external space, an ejection space formed between the ejection surface and the facing surface when a tip of the protrusion contacts the facing surface; and a humidifying mechanism having: a circulation passage whose first and second ends are open to the ejection space through openings thereof provided in one of the head and the head holder; and a humidifier for humidifying an air in the passage, the humidifying mechanism being configured to collect an air in the ejection space from the opening of the first end and to supply an air humidified by the humidifier into the ejection space from the opening of the second end.

Abstract: A liquid ejection apparatus, including: a liquid ejection head having an ejection face; a sealing mechanism configured to selectively establish a sealing state in which an ejection space is sealed and an unsealing state; first and second openings, interposing at least a part of the ejection face in one direction, for supplying air into the ejection space; a generating portion configured to generate humid air; a supply portion configured to supply the generated humid air into the ejection space via the first or the second opening; and a controller configured to control the supply portion such that a period in which the humid air is supplied via the first opening and a period in which the humid air is supplied via the second opening do not overlap each other when the humid air is supplied into the ejection space in a current humid-air supply processing.

Abstract: A recording apparatus may include a recording head including a discharge surface in which liquid discharge openings are arranged in a particular direction. The recording apparatus may include a supplying member which is positioned at a first end portion in the particular direction, and supplies the liquid to the recording head. The recording apparatus may include a liquid supplying device which is connected to the supplying member, and supplies the liquid to the recording head. The recording apparatus may include a position adjusting device including a contact member which contacts the recording head, and adjusts a position of the recording head by moving the contact member. The position adjusting device may be positioned at a second end portion opposite to the first end portion in the particular direction.

Abstract: A liquid ejecting apparatus, including: a head having an ejection surface; a head holder; a capping mechanism for capping the ejection surface, having: a facing member with a facing surface to face the ejection surface; and a protrusion provided on the head holder for isolating, from an external space, an ejection space formed between the ejection surface and the facing surface when a tip of the protrusion contacts the facing surface; and a humidifying mechanism having: a circulation passage whose first and second ends are open to the ejection space through openings thereof provided in one of the head and the head holder; and a humidifier for humidifying an air in the passage, the humidifying mechanism being configured to collect an air in the ejection space from the opening of the first end and to supply an air humidified by the humidifier into the ejection space from the opening of the second end.

Abstract: A liquid ejecting apparatus, including: a head having an ejection surface; a head holder; a capping mechanism for capping the ejection surface, having: a facing member with a facing surface to face the ejection surface; and a protrusion provided on the head holder for isolating, from an external space, an ejection space formed between the ejection surface and the facing surface when a tip of the protrusion contacts the facing surface; and a humidifying mechanism having: a circulation passage whose first and second ends are open to the ejection space through openings thereof provided in one of the head and the head holder; and a humidifier for humidifying an air in the passage, the humidifying mechanism being configured to collect an air in the ejection space from the opening of the first end and to supply an air humidified by the humidifier into the ejection space from the opening of the second end.

Abstract: A liquid ejection apparatus including: a head having a face that has ejection openings through which liquid is ejected to record an image on a recording medium, an ejection space being defined so as to face the face; a humidification-liquid tank storing humidification liquid having a nonvolatile component; a sealing mechanism configured to selectively establish a sealing state in which the sealing mechanism seals the ejection space from an outside and an unsealing state in which the sealing mechanism does not seal the ejection space from the outside; and a humid-air supply mechanism configured to supply humid air into the ejection space when the sealing mechanism is in the sealing state, the humid air being an air humidified by the humidification liquid in the humidification-liquid tank, wherein the humidification-liquid tank is configured to be mountable on and removable from the humid-air supply mechanism.

Abstract: A liquid discharge apparatus includes a discharge space which faces a discharge surface of a liquid discharge head which is sealed by a cap. A humidification pump is driven to rotate forward such that air in a discharge space is humidified while passing through a water reservoir via an opening and tubes. Humidified air flows into the discharge space via a tube and an opening. When an amount of non-volatile component in the water reservoir exceeds a prescribed amount, the humidification pump is driven to rotate backward such that water stored in the water reservoir is exhausted through the opening via the tubes.

Abstract: A liquid ejection apparatus, including: a liquid ejection head having an ejection face; a sealing mechanism configured to selectively establish a sealing state in which an ejection space is sealed and an unsealing state; first and second openings, interposing at least a part of the ejection face in one direction, for supplying air into the ejection space; a generating portion configured to generate humid air; a supply portion configured to supply the generated humid air into the ejection space via the first or the second opening; and a controller configured to control the supply portion such that a period in which the humid air is supplied via the first opening and a period in which the humid air is supplied via the second opening do not overlap each other when the humid air is supplied into the ejection space in a current humid-air supply processing.

Abstract: A liquid ejection apparatus including: a head having a face that has ejection openings through which liquid is ejected to record an image on a recording medium, an ejection space being defined so as to face the face; a humidification-liquid tank storing humidification liquid having a nonvolatile component; a sealing mechanism configured to selectively establish a sealing state in which the sealing mechanism seals the ejection space from an outside and an unsealing state in which the sealing mechanism does not seal the ejection space from the outside; and a humid-air supply mechanism configured to supply humid air into the ejection space when the sealing mechanism is in the sealing state, the humid air being an air humidified by the humidification liquid in the humidification-liquid tank, wherein the humidification-liquid tank is configured to be mountable on and removable from the humid-air supply mechanism.

Abstract: A liquid discharge apparatus includes a discharge space which faces a discharge surface of a liquid discharge head which is sealed by a cap. A humidification pump is driven to rotate forward such that air in a discharge space is humidified while passing through a water reservoir via an opening and tubes. Humidified air flows into the discharge space via a tube and an opening. When an amount of non-volatile component in the water reservoir exceeds a prescribed amount, the humidification pump is driven to rotate backward such that water stored in the water reservoir is exhausted through the opening via the tubes.

Abstract: Disclosed is a taste enhancing agent for achieving sufficient saltiness or sweetness even in cases where the salt content or sugar content in food is reduced. Specifically disclosed is a taste enhancing agent which contains one or more substances selected from among linear aliphatic aldehydes having 3-10 carbon atoms and linear aliphatic alcohols having 4-10 carbon atoms as active ingredients. The amount of salt content or sugar content added to food can be reduced by adding the taste enhancing agent to the food.

Abstract: A recording apparatus includes: a plurality of recording heads each of which includes an ejection surface; a head frame; at least one annular protrusion; a support tray; and a moving device. One or more positioning pins are provided in an inner area of the support tray that is enclosed with the annular protrusion, the positioning pins extending in a direction perpendicular to a flat surface which includes a contact portion of the annular protrusion that is come into contact with the head frame, and the head frame has one or more positioning holes into which the positioning pins are insertable in the contact state of the annular protrusion.

Abstract: A liquid ejecting apparatus, including: a medium conveying mechanism which conveys a medium in a first direction; a head pair composed of two liquid ejecting heads respectively having liquid ejection surfaces in which liquid ejection areas are respectively formed, the two heads having respective one end portions overlapping each other as viewed in the first direction, and disposed such that the respective one end portions are adjacent to each other in the first direction; two wipers for wiping the respective ejection surfaces; and a wiper moving mechanism configured to move the two wipers in mutually opposite directions, wherein the ejection areas partly overlap each other as viewed in the first direction, wherein, when each wiper is placed by the wiper moving mechanism at a wiping start position at which each wiper does not face the corresponding ejection surface, the two wipers partly overlap each other as viewed in the first direction, and wherein, when each wiper is placed at a wiping complete position at

Abstract: A liquid ejection apparatus including: a liquid ejection head including: an inside channel; and ejection openings; a tank; an air communication device; a supply channel; a return channel; a supply device; an adjusting device; and a controller, wherein the controller performs a liquid circulation control for circulating the liquid through the supply channel, the inside channel, and the return channel in order by controlling: the adjusting device such that a channel resistance value of the return channel is less than a predetermined maximum value; and the supply device to supply the liquid into the inside channel, wherein, when the liquid is circulated by the liquid circulation control, the controller starts a liquid discharge control for discharging the liquid by making the channel resistance value larger than that in the liquid circulation control, and wherein the controller controls the air communication device such that an inside of the tank is interrupted from the ambient air in at least a part of a period

Abstract: An image recording apparatus including: (a) a head assembly including (a-1) recording heads having respective nozzle opening surfaces and (a-2) a head frame supporting the recording heads; (b) annular protrusions each of which is to be brought into contact with the head assembly, so as to surround the plurality of nozzles opening in the corresponding nozzle opening surface; (c) a supporting tray elongated in a supporting-tray longitudinal direction and supporting the annular protrusions; (d) a movement mechanism configured to move the head assembly and/or the supporting tray, and (e) a positioning pin projecting from a pin-located portion of the supporting tray. The pin-located portion is outside the annular protrusions, and is located in a center of the supporting tray in the supporting-tray longitudinal direction. The head frame has a positioning hole, into which the positioning pin is to be introduced upon contact of each annular protrusion with the head assembly.

Abstract: A liquid ejecting apparatus, including: a head having an ejection surface; a head holder; a capping mechanism for capping the ejection surface, having: a facing member with a facing surface to face the ejection surface; and a protrusion provided on the head holder for isolating, from an external space, an ejection space formed between the ejection surface and the facing surface when a tip of the protrusion contacts the facing surface; and a humidifying mechanism having: a circulation passage whose first and second ends are open to the ejection space through openings thereof provided in one of the head and the head holder; and a humidifier for humidifying an air in the passage, the humidifying mechanism being configured to collect an air in the ejection space from the opening of the first end and to supply an air humidified by the humidifier into the ejection space from the opening of the second end.

Abstract: An inkjet recording apparatus including: (a) a recording head; (b) an ink supply source; (c) an ink supply conduit interconnecting the recording head and the ink supply source, such that the ink is supplied from the ink supply source to the recording head in an ink supplying direction; (d) a movable body disposed in the ink supply conduit and movable in the ink supply conduit; (e) a moving device configured to move the movable body in the ink supply conduit; and (f) a control device configured to control the moving device. The ink supply conduit includes a small-clearance defining portion in which a small clearance is to be defined between the movable body and an inner surface of the ink supply conduit when the movable body is being positioned in the small-clearance defining portion.