Abstract: the flow path unit including: a flow path base material absorbent to laser light; and a flow path member that is transparent to laser light and is welded to the flow path base material, the flow path base material has a first surface and a second surface, a welding region to be welded to the flow path member is formed at the first surface, a relay flow path that is a portion of a flow path is defined by welding the flow path member to the welding region, the flow path member has a welding surface welded to the welding region, an opposite surface that is a surface opposite to the welding surface, and a coupling pipe that extends from the opposite surface, a coupling flow path that is a portion of the flow path opens in the coupling pipe, the coupling flow path communicates with the relay flow path.

Abstract: A mounting unit includes a mounting portion to which a liquid container that accommodates a liquid is mounted, in which the mounting portion has a liquid introduction portion that is inserted into the liquid container that is mounted to the mounting portion, and a first receiving portion that is provided below the liquid introduction portion, the first receiving portion has a first recess portion and a second recess portion, the liquid introduction portion extends in a direction opposite to a mounting direction that is a direction in which the liquid container moves when the liquid container is mounted to the mounting portion, and the second recess portion is provided at a position closer to a tip of the liquid introduction portion than the first recess portion is in the mounting direction.

Abstract: A mounting unit includes a mounting portion to which a liquid container that accommodates a liquid is mounted, in which the mounting portion has a liquid introduction portion that is inserted into the liquid container that is mounted to the mounting portion, and a first receiving portion that is provided below the liquid introduction portion, the first receiving portion has a first recess portion and a second recess portion, the liquid introduction portion extends in a direction opposite to a mounting direction that is a direction in which the liquid container moves when the liquid container is mounted to the mounting portion, and the second recess portion is provided at a position closer to a tip of the liquid introduction portion than the first recess portion is in the mounting direction.

Abstract: There is provided a flow channel member in which a flow channel of a liquid is formed by a plurality of flow channel forming members, the flow channel member including: a first flow channel forming member that includes a light absorbing member having absorbing properties with respect to laser light; a second flow channel forming member that includes a light transmitting member having transmitting properties with respect to the laser light and is welded to a first surface of the first flow channel forming member; and a third flow channel forming member that includes a light transmitting member having transmitting properties with respect to the laser light and is welded to a second surface of the first flow channel forming member. The first surface and the second surface are provided at positions where planes along the both surfaces intersect with each other.

Abstract: There is provided a flow channel member in which a flow channel of a liquid is formed by a plurality of flow channel forming members, the flow channel member including: a first flow channel forming member that includes a light absorbing member having absorbing properties with respect to laser light; a second flow channel forming member that includes a light transmitting member having transmitting properties with respect to the laser light and is welded to a first surface of the first flow channel forming member; and a third flow channel forming member that includes a light transmitting member having transmitting properties with respect to the laser light and is welded to a second surface of the first flow channel forming member. The first surface and the second surface are provided at positions where planes along the both surfaces intersect with each other.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head that ejects a liquid to a medium transported along a transport path, a suction mechanism that sucks an interior of the liquid ejecting head, an atmospheric pressure detection unit that has a vent for communication with an atmosphere and that detects atmospheric pressure, and a control unit that controls operation of the suction mechanism on the basis of a value of atmospheric pressure detected by the atmospheric pressure detection unit. The atmospheric pressure detection unit is disposed at a location that is outside the transport path and that is higher than the transport path.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head that ejects a liquid to a medium transported along a transport path, a suction mechanism that sucks an interior of the liquid ejecting head, an atmospheric pressure detection unit that has a vent for communication with an atmosphere and that detects atmospheric pressure, and a control unit that controls operation of the suction mechanism on the basis of a value of atmospheric pressure detected by the atmospheric pressure detection unit. The atmospheric pressure detection unit is disposed at a location that is outside the transport path and that is higher than the transport path.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head configured to eject liquid onto a medium, a mounting portion on which a liquid collection container including an absorber that absorbs liquid is removably mounted, a liquid receiving portion configured to receive the liquid ejected by the liquid ejecting head, and a relay portion located in a region communicating with the liquid receiving portion. The relay portion is located at a position in contact with the absorber of the liquid collection container mounted in the mounting portion.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head configured to eject liquid onto a medium, a mounting portion on which a liquid collection container including an absorber that absorbs liquid is removably mounted, a liquid receiving portion configured to receive the liquid ejected by the liquid ejecting head, and a relay portion located in a region communicating with the liquid receiving portion. The relay portion is located at a position in contact with the absorber of the liquid collection container mounted in the mounting portion.

Abstract: A waste liquid container is detachably mounted on a mounting unit which includes a discharge portion discharging a waste liquid and a projection to which a substrate connection portion is joined. The waste liquid container includes: a containing portion that is able to contain the waste liquid; a connection concave portion that is opened in a mounting direction; a circuit substrate that includes connection terminals electrically connected to the substrate connection portion and is joined to the connection concave portion; and a waste liquid introduction portion that is connected to the discharge portion. In the connection concave portion, one pair of guide portions guiding the projection is formed so that the connection terminals are interposed therebetween in a width direction intersecting the mounting direction. Of the pair of guide portions, one guide portion is disposed between the connection terminals and the waste liquid introduction portion in the width direction.

Abstract: A waste liquid container is detachably mounted on a mounting unit which includes a discharge portion discharging a waste liquid and a projection to which a substrate connection portion is joined. The waste liquid container includes: a containing portion that is able to contain the waste liquid; a connection concave portion that is opened in a mounting direction; a circuit substrate that includes connection terminals electrically connected to the substrate connection portion and is joined to the connection concave portion; and a waste liquid introduction portion that is connected to the discharge portion. In the connection concave portion, one pair of guide portions guiding the projection is formed so that the connection terminals are interposed therebetween in a width direction intersecting the mounting direction. Of the pair of guide portions, one guide portion is disposed between the connection terminals and the waste liquid introduction portion in the width direction.

Abstract: A waste liquid container is detachably mounted on a mounting unit which includes a discharge portion discharging a waste liquid and a projection to which a substrate connection portion is joined. The waste liquid container includes: a containing portion that is able to contain the waste liquid; a connection concave portion that is opened in a mounting direction; a circuit substrate that includes connection terminals electrically connected to the substrate connection portion and is joined to the connection concave portion; and a waste liquid introduction portion that is connected to the discharge portion. In the connection concave portion, one pair of guide portions guiding the projection is formed so that the connection terminals are interposed therebetween in a width direction intersecting the mounting direction. Of the pair of guide portions, one guide portion is disposed between the connection terminals and the waste liquid introduction portion in the width direction.

Abstract: A fluid ejecting apparatus includes a fluid containing portion, a fluid discharging portion, a flow passage forming portion and a valve mechanism. The fluid containing portion contains fluid. The fluid discharging portion discharges the fluid. The flow passage forming portion forms a fluid flow passage that extends from the fluid containing portion to the fluid discharging portion. The valve mechanism is able to open or close the fluid flow passage. The fluid ejecting apparatus is placed in an initial state before an initial use of the fluid ejecting apparatus, wherein fluid is contained in the fluid containing portion and at least portion of the fluid flow passage from a position of the fluid containing portion to a position of the valve mechanism is filled with the fluid and the fluid flow passage is closed by the valve mechanism.

Abstract: A fluid ejecting apparatus includes a fluid containing portion, a fluid discharging portion, a flow passage forming portion and a valve mechanism. The fluid containing portion contains fluid. The fluid discharging portion discharges the fluid. The flow passage forming portion forms a fluid flow passage that extends from the fluid containing portion to the fluid discharging portion. The valve mechanism is able to open or close the fluid flow passage. The fluid ejecting apparatus is placed in an initial state before an initial use of the fluid ejecting apparatus, wherein fluid is contained in the fluid containing portion and at least portion of the fluid flow passage from a position of the fluid containing portion to a position of the valve mechanism is filled with the fluid and the fluid flow passage is closed by the valve mechanism.

Abstract: A tube pump including a housing with a cylindrical inner circumferential surface, wherein a portion of a flexible tube is wound with an upstream portion and a downstream portion of the tube overlapping at a overlapping section, and a pressing member capable of pressing the tube which is movably housed along the inner circumferential surface. The housing includes a relief portion for releasing either the upstream portion or the downstream portion from the pressing of the pressing member, wherein the relief portion is formed on the inner circumferential surface at a position which corresponds to the position of tube overlapping section.

Abstract: A silicon nozzle plate includes nozzles each with a first nozzle portion having a circular cross-section and a second nozzle portion having a circular cross-section wherein the circular cross-section of the first nozzle portion is smaller than the circular cross-section of the second nozzle portion. In one embodiment the nozzle plate is utilized in an inkjet head and includes a recess having a flat bottom surface that commonly communicates with a plurality of first nozzle portions and a through hole that exposes terminal portions that supply control signals to pressure generators.

Abstract: A method for manufacturing an electrostatic actuator comprises a vibrating plate, an electrode plate facing the vibrating plate, and a vibrating chamber formed between the electrode plate and the vibrating plate, wherein the vibrating plate is displaced by electrostatic force, by applying voltage between the vibrating plate and the electrode plate, the method comprises: a process for forming a pressure compensating chamber communicating with the vibrating chamber; a process for forming a displacement plate at a portion of the pressure compensating chamber, displaceable according to external atmospheric pressure, into a warped form curved so as to protrude in a direction away from the facing inner wall of the pressure compensating chamber; and a process for shutting off and sealing the pressure compensating chamber from the external atmosphere, along with the vibrating chamber.

Abstract: A method for manufacturing an electrostatic actuator comprises a vibrating plate, an electrode plate facing the vibrating plate, and a vibrating chamber formed between the electrode plate and the vibrating plate, wherein the vibrating plate is displaced by electrostatic force, by applying voltage between the vibrating plate and the electrode plate, the method comprises: a process for forming a pressure compensating chamber communicating with the vibrating chamber; a process for forming a displacement plate at a portion of the pressure compensating chamber, displaceable according to external atmospheric pressure, into a warped form curved so as to protrude in a direction away from the facing inner wall of the pressure compensating chamber; and a process for shutting off and sealing the pressure compensating chamber from the external atmosphere, along with the vibrating chamber.

Abstract: An electrostatic ink-jet head (1) in which the present invention is applied comprises a pressure chamber (6) communicating with an ink nozzle (21), and an atmospheric pressure chamber (12) opened to the atmosphere, with a vibrating plate (5) being provided on the base plane of the pressure chamber (6). Voltage applied between the vibrating plate (5) and an electrode (43) causes the vibrating plate (5) to vibrate due to electrostatic force, thereby discharging ink droplets. A vibrating chamber (41) communicates with a pressure compensating chamber (49), and a displacement plate (16) capable of being displaced in the direction outward from the plane according to fluctuations in the external, atmospheric pressure is formed at the base plane of the pressure compensating chamber (49).