Abstract: A liquid ejection apparatus includes a head unit that ejects a liquid, and a control unit that controls an operation of the head unit, wherein the head unit includes a drive signal output circuit that outputs a drive signal, a first substrate on which the drive signal output circuit is provided, and a first ejection head including a first drive element driven by the drive signal, and a first nozzle plate including a first nozzle from which a liquid is ejected by driving the first drive element, wherein the first substrate includes a first face and a second face, wherein the drive signal output circuit is provided on the first face, and wherein a shortest distance between the first nozzle plate and the second face is shorter than a shortest distance between the first nozzle plate and the first face.

Abstract: A case having elasticity corresponding to expansion and contraction of a stacked body housed therein and a method for manufacturing the same, a method for inserting the stacked body into the case, and a cell stack using the case are provided. A case configured to house a stacked body includes two opposed contact parts in contact with the stacked body, and two spring structures connecting the two contact parts with each other.

Abstract: A liquid ejecting apparatus includes a head unit that includes a nozzle that ejects a liquid, a control circuit that outputs a control signal that controls an operation of the head unit, a power supply circuit that supplies a power supply voltage to the head unit, and a liquid container that stores the liquid. The head unit includes a first terminal to which the control signal is input, a second terminal to which the power supply voltage is supplied, and a liquid supply port to which the liquid is supplied, the first terminal and the second terminal are located side by side along a first direction, and the second terminal is located between the first terminal and the liquid supply port in a second direction intersecting the first direction.

Abstract: A display system includes an attitude detection device configured to detect an attitude change amount of a moving body, and a correction processing device including a vibration detector configured to determine whether or not an attitude change in the moving body having a specific frequency band component has been continuously generated based on the attitude change amount. The correction processing device updates a correction amount of a display position of the image based on the attitude change amount when the vibration detector determines that the attitude change having the specific frequency band component has not been continuously generated, and sets an absolute value of the correction amount to be equal to or less than an absolute value of a correction amount at a time of last determination when the vibration detector determines that the attitude change having the specific frequency band component has been continuously generated.

Abstract: Provided is a hydrotreating catalyst for a heavy hydrocarbon oil, the catalyst including an inorganic oxide carrier including alumina as a main component and a metal component supported on the inorganic oxide carrier, the catalyst having a specific surface area within a predetermined range, a reduction peak temperature that is lower than 450° C. in temperature-programmed reduction measurement of the catalyst and that is higher than or equal to a predetermined temperature, and an amount of nitrogen monoxide adsorbed on the sulfided catalyst within a predetermined range.

Abstract: A projection type image display apparatus including a light source apparatus includes a light emitting element emitting blue light; a phosphor receiving the blue light to emit predetermined light; a heat sink provided with a bottom portion and a plurality of heat radiation fins extending from the bottom portion; and a cooling fan arranged to cool the plurality of heat radiation fins of the heat sink. The light emitting element is attached to the bottom portion of the heat sink. The phosphor is attached to the bottom portion of the heat sink at a predetermined interval from the light emitting element. Heat pipes conducting heat by repeating evaporation and liquefaction of working liquid are embedded in the bottom portion. The heat pipes are respectively provided with sections opposing the light emitting element in a thickness direction of the bottom portion.

Abstract: In a liquid discharge apparatus, a head unit includes a plurality of print heads, and a housing that houses the print heads, in which a first print head in the plurality of print heads includes a substrate that includes a first side, a second side, a first surface, and a second surface, a first nozzle plate, a first integrated circuit that is provided on the first surface, that outputs an abnormality signal indicating presence or absence of abnormality of the first print head, a first flexible wiring substrate that is electrically coupled to the substrate, and a second integrated circuit that is provided on the first flexible wiring substrate, the second integrated circuit is located between the first nozzle plate and the substrate, and the substrate is provided so that the first surface faces downward and the second surface faces upward in a direction along a vertical direction.

Abstract: A printing apparatus includes a voltage supply section that supplies a charging voltage for charging a transport belt, a detection section that detects whether or not charging abnormality has occurred in the transport belt, and a determination section that determines a cause of the charging abnormality. The determination section determines that the cause of the charging abnormality is abnormality of the voltage supply section, when the movement period includes the period for which the detection section detects the charging abnormality and does not include the period for which the detection section does not detect the charging abnormality.

Abstract: A printing apparatus includes a printing section that performs printing on a medium containing calcium carbonate, a transport section that rotationally drives a transport belt that forms at least a portion of a transport path in which the medium is transported, a voltage supply section that supplies a charging voltage to a charging roller for charging the transport belt, a detection section that detects whether or not charging abnormality has occurred in the transport belt, a determination section that determines whether a cause of the charging abnormality is abnormality of the voltage supply section or abnormality of the transport belt, and a machine learning section that performs machine learning of a determination condition in the determination section, based on a learning model in which a rotation amount of the transport belt and a detection result of the detection section are associated with each other.

Abstract: A printing apparatus includes a printing section that performs printing on a medium containing calcium carbonate, a transport section that rotationally drives a transport belt that forms at least a portion of a transport path in which the medium is transported, a voltage supply section that supplies a charging voltage to a charging roller for charging the transport belt, a detection section that detects whether or not charging abnormality has occurred in the transport belt, and a determination section that determines whether abnormality has occurred in the voltage supply section or the transport belt, or abnormality has occurred in the voltage supply section and the transport belt, based on a rotation amount of the transport belt and the detection result of the detection section. The transport belt is coated with melamine resin.

Abstract: A device management apparatus according to one embodiment of the present invention for managing a plurality of devices which consume or deplete a product, said apparatus having a storage for storing device identification information and provider information in association with one another, a receiving unit for receiving device identification information and product information which has been transmitted by a device among the plurality of devices, a determination unit for determining whether or not the consumption status or depletion status expressed by the product information satisfies determination conditions, and a notification unit which, when the determination unit has determined that the determination conditions are met, notifies a provider device which is associated with the provider identified on the basis of the provider information associated with the device identification information about an action which pertains to a product which is consumed or depleted by the device identified by the device iden

Abstract: A print head control circuit includes a first diagnosis signal propagation wiring for propagating a first diagnosis signal, a fifth diagnosis signal propagation wiring for propagating a fifth diagnosis signal indicating a diagnosis result, and a second voltage signal propagation wiring for propagating a second voltage signal. The fifth diagnosis signal propagation wiring and the second voltage signal propagation wiring are electrically coupled to each other via a fifth terminal and a seventh terminal, and the first diagnosis signal propagation wiring and the second diagnosis signal propagation wiring are located to be aligned. The first diagnosis signal propagation wiring and the second voltage signal propagation wiring are located to be adjacent to each other in a direction in which the first diagnosis signal propagation wiring and the second diagnosis signal propagation wiring are aligned.

Abstract: There are provided a substrate on which a first integrated circuit, a first transistor, a second integrated circuit, and a second transistor are disposed; a heat sink fixed to the substrate; the substrate has a first fixing reference hole and a second fixing reference hole, the heat sink has a first fixing reference pin and a second fixing reference pin which are inserted into the first fixing reference hole and the second fixing reference hole, and the first integrated circuit, the second integrated circuit, the first transistor, and the second transistor are positioned between the first fixing reference hole and the second fixing reference hole.

Abstract: There is provided a head unit including: a substrate on which a first driving circuit is disposed; a heat sink fixed to the substrate; and heat conductive elastic bodies positioned between the substrate and the heat sink, in which the first driving circuit includes a first integrated circuit, a first amplifier circuit including a first transistor, and a first smoothing circuit that outputs the first driving signal, in which a first heat conductive elastic body is in contact with the heat sink and the first integrated circuit, a second heat conductive elastic body is in contact with the heat sink and the first transistor, and the first heat conductive elastic body and the second heat conductive elastic body are in a form of a gel having flame retardancy and electric insulation property.

Abstract: There are provided a substrate on which a first integrated circuit, a first transistor, a second integrated circuit, and a second transistor are disposed; a heat sink fixed to the substrate; a first heat conductive elastic body which is in contact with the heat sink and the first integrated circuit; a second heat conductive elastic body which is in contact with the heat sink and the first transistor; a third heat conductive elastic body which is in contact with the heat sink and the second integrated circuit; and a fourth heat conductive elastic body which is in contact with the heat sink and the second transistor, the heat sink has a first recess portion positioned between the first heat conductive elastic body and the second heat conductive elastic body, and a second recess portion positioned between the third heat conductive elastic body and the fourth heat conductive elastic body.

Abstract: There are provided a substrate on which a first integrated circuit, a first transistor, and a first inductor element are disposed, and which has a first side and a second side facing each other; a heat sink having a fifth side and a sixth side along the first side; the first integrated circuit, the first transistor, and the first inductor element are positioned in order of the first integrated circuit, the first transistor, and the first inductor element from the first side toward the second side, and the heat sink is fixed to the substrate such that a shortest distance between the fifth side and the first side is shorter than a shortest distance between the sixth side and the first side, and a shortest distance between the first integrated circuit and the fifth side is longer than a shortest distance between the first transistor and the sixth side.

Abstract: There are provided a first fixing section to a third fixing section that fix a heat sink to a substrate on which a first driving circuit and a second driving circuit are disposed; the first drive circuit includes first transistor and first integrated circuit, and the second drive circuit includes second transistor and second integrated circuit, lengths of the first transistor and the second transistor in the normal direction of the substrate are longer than lengths of the first integrated circuit and the second integrated circuit, the first fixing section and the second fixing section overlap a first virtual straight line that connects the first transistor and the second transistor, and the third fixing section overlaps a second virtual straight line that connects the first integrated circuit and the second integrated circuit to each other.

Abstract: A liquid discharge apparatus includes a print head discharging a liquid and a control circuit controlling an operation of the print head. the print head includes a connector having a first terminal, a second terminal, a third terminal, and a fourth terminal, a first integrated circuit, a circuit substrate on which the connector and the first integrated circuit are provided and which has first wiring, second wiring, third wiring, fourth wiring, fifth wiring, and sixth wiring, and a first wiring substrate, in which the first wiring electrically couples the first terminal and the first integrated circuit to each other, the fifth wiring electrically couples the first terminal and the first integrated circuit to each other, and the sixth wiring electrically couples the first integrated circuit and the first wiring substrate to each other.

Abstract: A liquid ejecting apparatus includes a head, and a drive signal output unit that outputs a drive signal. The head unit includes a first rigid substrate, and a first connector to which the drive signal is input, the drive signal output unit includes a second rigid substrate, and a second connector from which the drive signal is output, the first connector includes a first fixing portion fixed to the first rigid substrate, and a first terminal, the second connector includes a second fixing portion fixed to the second rigid substrate, and a second terminal, the first connector has a receptacle shape, the second connector has a plug shape, and the first rigid substrate and the second rigid substrate are electrically coupled by fitting the first connector and the second connector so that the first terminal and the second terminal are in direct contact with each other.

Abstract: Provided is a hydrotreating catalyst for a heavy hydrocarbon oil, the catalyst including an inorganic oxide carrier including alumina as a main component and a metal component supported on the inorganic oxide carrier, the catalyst having a specific surface area within a predetermined range, a reduction peak temperature that is lower than 450° C. in temperature-programmed reduction measurement of the catalyst and that is higher than or equal to a predetermined temperature, and an amount of nitrogen monoxide adsorbed on the sulfided catalyst within a predetermined range.