Abstract: A printing device is provided with a print head having a plurality of nozzles configured to eject ink droplets therefrom, a supplier configured to supply ink contained in a container to the print head, and a controller. The controller is configured to perform obtaining ink information having correlation with a height of a liquid surface of the ink contained in the container, obtaining subject image data representing an image to be printed, generating print data based on the subject image data, and causing the print head to eject ink droplets based on the print data. The generating includes adjusting the print data in accordance with the ink information.

Abstract: According to one aspect, the disclosure provides an image recording apparatus including a liquid supplying device. The liquid supplying device includes a tank, a cartridge, an atmospheric communication portion, and a recording portion. The tank has a second storage chamber configured to store liquid, a liquid passage in communication with the second storage chamber, and a gas passage in communication with the second storage chamber. The atmospheric communication portion includes a buffer tank defining a buffer chamber configured to store gas, a single communication flow passage allowing the buffer chamber to communicate with the second storage chamber, and an air communication passage allowing the buffer chamber to communicate with an atmosphere. When the cartridge is attached to the tank, the buffer chamber is positioned below the first storage chamber and the second storage chamber is positioned below the buffer chamber.

Abstract: A tank set includes: tanks arranged in a predetermined direction, each of the tanks being composed of a casing including: a liquid storage chamber defined by mutually opposing two surfaces and configured to store liquid; an inlet provided to inject the liquid into the liquid storage chamber; and a liquid outflow port through which the liquid flows out from the liquid storage chamber to a liquid-consuming unit. Each of the two surfaces extends in a direction intersecting the predetermined direction, and is at least partially composed of a film.

Abstract: A liquid supplying device includes a tank and a cartridge. The cartridge is configured to be detachably attached to the tank in an attachment-detachment direction crossing a vertical direction. The cartridge includes a first storage chamber. The tank includes a second storage chamber, a liquid passage, and a gas passage. The liquid passage has a first end, a second end, and a first extending portion. The second end is formed with a second opening open to an atmosphere. The first extending portion extends from the second opening in the attachment-detachment direction. The gas passage has a third end, a fourth end, and a second extending portion. The fourth end is formed with a fourth opening open to the atmosphere. The second extending portion extends from the fourth opening in the attachment-detachment direction. The second opening is at a position different from the fourth opening in the attachment-detachment direction.

Abstract: An underwater propulsion apparatus 1 according to an embodiment includes a main body 2 having a conical tail portion, a channel 4 having an inlet 6 in the outer circumferential surface of the main body 2 and a nozzle 7 on the side downstream of the inlet 6 and in the tail portion, at least one pump 3 having an impeller 5 provided in the channel 4, a diffuser 8 attached to the main body 2 so as to surround the outer circumference of the nozzle 7, and a plurality of direction control wings 9 attached to the outer surface of the main body 2 and located in positions downstream of the nozzle 7 and close thereto, each of the plurality of direction control wings 9 having an upstream end pivotally supported by the main body 2.

Abstract: An underwater propulsion apparatus 1 according to an embodiment includes a main body 2 having a conical tail portion, a channel 4 having an inlet 6 in the outer circumferential surface of the main body 2 and a nozzle 7 on the side downstream of the inlet 6 and in the tail portion, at least one pump 3 having an impeller 5 provided in the channel 4, a diffuser 8 attached to the main body 2 so as to surround the outer circumference of the nozzle 7, and a plurality of direction control wings 9 attached to the outer surface of the main body 2 and located in positions downstream of the nozzle 7 and close thereto, each of the plurality of direction control wings 9 having an upstream end pivotally supported by the main body 2.

Abstract: A differential pressure detecting apparatus includes a columnar main body wherein a differential pressure detection portion is inserted into a closed-end hole having a countersunk portion and formed in the outer circumferential surface of said main body at right angles to the axis of the main body, wherein a first seal diaphragm for receiving one of introduced pressures relating to a differential pressure to be measured is provided in one end surface of the main body, and wherein the main body has a hole provided for transmitting the received introduced pressure to the differential pressure detection portion; a disc-like sub-body inserted into the countersunk portion of the closed-end hole, wherein a second seal diaphragm for receiving the other introduced pressure is provided in the outer end surface of the sub-body, and wherein a hole is provided for transmitting the received introduced pressure to the differential pressure detection portion; a cover provided on the one end surface of the main body, and hav