Abstract: A head module supporting member that supports head modules (200) and has a structure in which a longitudinal direction of the head module supporting member is a first direction, and a deflection suppressing unit (112) that has a structure in which a longitudinal direction of the deflection suppressing unit is the first direction, and is disposed on a top surface of the head module supporting member are included. The deflection suppressing unit is an elastic body. A deflection absorption unit (114) connected to the top surface of the head module supporting member, a head module supporting member connection unit (116) connected to an intermediate position of the deflection absorption unit and to the top surface of the head module supporting member, and a biasing force applying unit that applies a biasing force which deflects the deflection absorption unit in a deflection direction of the head module supporting member are included.

Abstract: A head module supporting member that supports head modules (200) and has a structure in which a longitudinal direction of the head module supporting member is a first direction, and a deflection suppressing unit (112) that has a structure in which a longitudinal direction of the deflection suppressing unit is the first direction, and is disposed on a top surface of the head module supporting member are included. The deflection suppressing unit is an elastic body. A deflection absorption unit (114) connected to the top surface of the head module supporting member, a head module supporting member connection unit (116) connected to an intermediate position of the deflection absorption unit and to the top surface of the head module supporting member, and a biasing force applying unit that applies a biasing force which deflects the deflection absorption unit in a deflection direction of the head module supporting member are included.

Abstract: There is provided an ink jet recording apparatus that can correct bending of an ink jet head with a compact structure. First supporting frames 122 that support ink jet heads 110C, 110M, 110Y, and 110K and second supporting frames 170 that support a part of ink supply sections supplying ink to the ink jet heads 110C, 110M, 110Y, and 110K are mounted on a mount 300. The first supporting frames 122 are mounted on the mount 300 while both end portions of the first supporting frames 122 in a longitudinal direction are supported. Each of the second supporting frames 170 is provided with a bending correction mechanism 340 that applies a pressing force to the first supporting frame 122 to correct the bending of the first supporting frame 122.

Abstract: There is provided an ink jet recording apparatus that can correct bending of an ink jet head with a compact structure. First supporting frames 122 that support ink jet heads 110C, 110M, 110Y, and 110K and second supporting frames 170 that support a part of ink supply sections supplying ink to the ink jet heads 110C, 110M, 110Y, and 110K are mounted on a mount 300. The first supporting frames 122 are mounted on the mount 300 while both end portions of the first supporting frames 122 in a longitudinal direction are supported. Each of the second supporting frames 170 is provided with a bending correction mechanism 340 that applies a pressing force to the first supporting frame 122 to correct the bending of the first supporting frame 122.

Abstract: A base frame, which supports head modules, is provided with a first storage device that stores information about the positions of support reference points of the head modules. The head module is provided with a second storage device that stores information about the positions of nozzles of the head module. An inkjet recording device is provided with a third storage device that stores information about the positions of the nozzles of the respective head modules provided on the base frame. When the head module is replaced, information about the correction of a position, which is required to mount the replaced head module at a normal position, is generated based on the information stored in the first storage device, the information stored in the second storage device, and the information stored in the third storage device. The mounting position of the replaced head module is corrected based on the generated information.

Abstract: A base frame, which supports head modules, is provided with a first storage device that stores information about the positions of support reference points of the head modules. The head module is provided with a second storage device that stores information about the positions of nozzles of the head module. An inkjet recording device is provided with a third storage device that stores information about the positions of the nozzles of the respective head modules provided on the base frame. When the head module is replaced, information about the correction of a position, which is required to mount the replaced head module at a normal position, is generated based on the information stored in the first storage device, the information stored in the second storage device, and the information stored in the third storage device. The mounting position of the replaced head module is corrected based on the generated information.

Abstract: Provided are a droplet-discharging head, a droplet-discharging device, and a method for positioning head modules of the droplet-discharging head in which the job of adjusting head module installation positions can be easily performed. In an ink jet head (200) configured by linking multiple head modules (210) together, each head modules (210) is mounted on a base frame (212) supported by a head module support unit provided on the base frame (212). The mounting positions of the head modules (210) in an X-direction mounted on the base frame (212) are individually adjusted by X-directional mounting position adjustment unit. The amounts of displacement of the head modules (210) here are detected by displacement detection unit.

Abstract: Provided are a droplet-discharging head, a droplet-discharging device, and a method for positioning head modules of the droplet-discharging head in which the job of adjusting head module installation positions can be easily performed. In an ink jet head (200) configured by linking multiple head modules (210) together, each head modules (210) is mounted on a base frame (212) supported by a head module support unit provided on the base frame (212). The mounting positions of the head modules (210) in an X-direction mounted on the base frame (212) are individually adjusted by X-directional mounting position adjustment unit. The amounts of displacement of the head modules (210) here are detected by displacement detection unit.

Abstract: A check valve assembly includes a valve housing upstream of an endoscope. A tubular discharge nozzle unit is mounted in the valve housing, and supplied with fluid by a fluid supply source. The discharge nozzle unit includes a large diameter portion, a small diameter portion, formed on the large diameter portion on a distal side, and having a closed distal end nearer to the endoscope, and a fluid opening formed through a wall of the small diameter portion. An elastic tubular portion (sleeve) is contained in the valve housing, disposed around the small and large diameter portions, shaped tubularly with a substantially regular thickness, having an inner diameter which is smaller than an outer diameter of the small diameter portion in a normal state, for preventing the fluid from backflow into the fluid opening through the outer surface on a side downstream of the discharge nozzle unit.

Abstract: An endoscope includes a flat surface which is provided at a distal end of an inserter to be inserted into a subject and is approximately perpendicular to an axial direction of the inserter, an observation window which has a light entrance surface located at a position higher than the flat surface, a fluid injection nozzle which is positioned on the flat surface and injects fluid toward the observation window, a first inclined plane which faces the fluid injection nozzle and inclines such that whose height gradually increases from the flat surface toward the observation window, and a back-flow prevention member which is provided so as to prevent the fluid having been injected from the fluid injection nozzle and passed though the light entrance surface of the observation window flows backwardly from the flat surface toward the light entrance surface of the observation window.

Abstract: An endoscope has an elongated tube, end shell, and imaging window. A water channel is formed through the elongated tube, for supplying water toward a distal surface. An air channel is formed through the elongated tube, for supplying air. For use with an endoscope, a fluid nozzle unit includes a nozzle housing for mounting on the end shell in a removable manner. A water branch conduit in the nozzle housing is supplied with the water by the water channel. An air branch conduit in the nozzle housing is supplied with the air by the air channel. A converging channel is formed in the nozzle housing, for coupling the water branch conduit and air branch conduit together. A nozzle spout device is secured to the nozzle housing, disposed on the distal surface, for ejecting the water and air from the converging channel toward the imaging window.

Abstract: On a head section connected to a distal end of an inserter of an endoscope, an air/water nozzle, an observation window and a ring projection are provided. On the ring projection, a first inclined plane and a vertical plane are formed. The first inclined plane inclines such that the outer diameter thereof gradually decreases from the top surface of the observation window toward a flat surface. The vertical plane is positioned at the counter side from the air/water nozzle across the observation window. Fluid injected from the air/water nozzle hits the first inclined plane and spreads to pass over the observation window. The vertical plane stops backflow of a water drop on the flat surface toward the observation window, so as to prevent that the water drop reaches on the top surface of the observation window.

Abstract: In an endoscope system, a nasal endoscope for entry in a first external nostril of a patient includes a first elongated tube, a first distal portion thereof, an imaging window, an instrument channel, a handle section, and a steering section. An assist device for entry in a second nostril includes a second elongated tube, a second distal portion thereof, and a working channel with a greater inner diameter than the instrument channel. A retaining device retains the second distal portion on the first distal portion removably and equidirectionally, to cause a second distal end surface to contact a lower peripheral part outside a first distal end surface lower than a horizontal line passing a center point of the imaging window when the first distal end surface is viewed in a state of orienting an upper side of steering of the steering section in an upward direction.