Abstract: A liquid ejecting head comprises a unit head bonded to a communication substrate. Liquid chamber forming portions are formed in the unit case, along a first direction at positions that are separated by a partition wall. Empty liquid chamber portions and supply-side communication paths are formed in the communication substrate. The supply-side communication paths include a common communication path formed in an opposite side with a thin thickness portion left in the surface side of the communication substrate, and individual communication paths. With a surface of the partition wall and a surface of the thin thickness portion bonded together, the empty liquid chamber forming portions and the empty liquid chamber portions communicate with each other so as to define common liquid chambers.

Abstract: A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold.

Abstract: A liquid ejecting head includes a plurality of pressure generators each including a first electrode individually provided therefor, the first electrode being located on a face of the flow path plate so as to correspond to one of the pressure chambers, a piezoelectric layer provided on the first electrode, and a second electrode provided on the piezoelectric layer; a lead electrode electrically connected to the first electrode; and a conductive layer provided in a section where the first electrode is partially exposed, the section being located in a region where the second electrode is not provided and the piezoelectric layer is exposed, at least a part of the conductive layer being in contact with the first electrode. The lead electrode is connected to the first electrode via the conductive layer.

Abstract: A cartridge 4 is mounted on a carriage 8 and has a liquid retaining member 460 placed in a recess 421 of a casing 420. A first side wall 425 constituting the casing 420 includes a first side wall part 425a and a second side wall part 425b aligned sequentially from a first end wall 423-side in a first direction from a first end wall 423 toward a second end wall 424. The first side wall part 425a includes a first side wall area 425a1 located on a bottom wall 422-side and extended to be substantially perpendicular to the bottom wall 422, and a second side wall area 425a2 arranged to be inclined with respect to the bottom wall 422. The second side wall part 425b is extended from the bottom wall 422 to be inclined with respect to the bottom wall 422. This configuration enables the liquid retaining member of containing a liquid such as ink to be compressed in the casing, while allowing for accurate positioning of the cartridge and improving attachment of the cartridge.

Abstract: Provided is a liquid ejecting apparatus capable of suppressing ink from remaining on a nozzle surface. A liquid ejecting apparatus includes a head unit 16 capable of ejecting a liquid from a nozzle 27 provided in a nozzle surface 22a of a nozzle plate 22, an anchoring plate 17 in which the head unit 16 is anchored and that is provided with an opening region 17a that exposes the nozzle surface 22, and a wiper member 12 that wipes an anchoring plate exposed-surface 17b located on the opposite side of the head unit 16 of the anchoring plate 17 and the nozzle surface 22a. When an angle of contact between the nozzle surface 22a and the liquid is taken as ?n, an angle of contact between the anchoring plate exposed-surface 17b and the liquid is taken as ?s, and an angle of contact between the wiper member 12 and the liquid is taken as ?w, the relationship ?n>?s>?w>90° is fulfilled.

Abstract: A liquid ejecting head includes a plurality of pressure generators each including a first electrode individually provided therefor, the first electrode being located on a face of the flow path plate so as to correspond to one of the pressure chambers, a piezoelectric layer provided on the first electrode, and a second electrode provided on the piezoelectric layer; a lead electrode electrically connected to the first electrode; and a conductive layer provided in a section where the first electrode is partially exposed, the section being located in a region where the second electrode is not provided and the piezoelectric layer is exposed, at least a part of the conductive layer being in contact with the first electrode. The lead electrode is connected to the first electrode via the conductive layer.

Abstract: Piezoelectric elements each have a configuration in which a lower electrode film, a piezoelectric body layer, and an upper electrode film are stacked in order from a side relatively near to a displacement portion that defines a pressure chamber by tightly closing a portion of a pressure chamber space that forms the pressure chamber. The lower electrode film is provided individually for each pressure chamber. The upper electrode film covers the lower electrode film and the piezoelectric body layer, and is common to the piezoelectric elements. The ratio of a length (L) of a displacement portion-side opening of each pressure chamber space in a direction orthogonal to a pressure chamber space juxtaposition direction to a width (W) of the displacement portion-side opening in the pressure chamber space juxtaposition direction is greater than or equal to 4.3 and less than or equal to 6.0.

Abstract: A wiper member 12 that wipes an anchoring plate exposed-surface 17b located on the opposite side of the head unit 16 of the anchoring plate 17 and the nozzle surface 22a. When an angle of contact between the nozzle surface 22a and the liquid is taken as ?n, an angle of contact between the anchoring plate exposed-surface 17b and the liquid is taken as ?s, and an angle of contact between the wiper member 12 and the liquid is taken as ?w, the relationship ?n>?s>?w>90° is fulfilled.

Abstract: A cartridge 4 has liquid supply ports 407b, 407c, 407y and 407m formed on a bottom wall 422 of a casing 420 and configured to be in contact with corresponding liquid introducing parts 710b, 710c, 710y and 710m of a carriage 8, and a circuit substrate 410 provided on a second wall surface portion 423b of a first end wall 423 intersecting with the bottom wall 422 and configured to be in electrically contact with an electrode assembly 810 of the carriage 8. In a plan view of the bottom wall 422 of the cartridge 4 in a first direction toward the bottom wall 422, the distance between a second end wall 424 and a first wall surface portion 423a of the first end wall 423 is set to be greater than the distance between the second end wall 424 and the second wall surface portion 423b. This configuration allows for downsizing of the entire liquid supply unit such as cartridge.

Abstract: Piezoelectric elements each have a configuration in which a lower electrode film, a piezoelectric body layer, and an upper electrode film are stacked in order from a side relatively near to a displacement portion that defines a pressure chamber by tightly closing a portion of a pressure chamber space that forms the pressure chamber. The lower electrode film is provided individually for each pressure chamber. The upper electrode film covers the lower electrode film and the piezoelectric body layer, and is common to the piezoelectric elements. The ratio of a length (L) of a displacement portion-side opening of each pressure chamber space in a direction orthogonal to a pressure chamber space juxtaposition direction to a width (W) of the displacement portion-side opening in the pressure chamber space juxtaposition direction is greater than or equal to 4.3 and less than or equal to 6.0.

Abstract: A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold.

Abstract: Provided is a liquid ejecting head including a pressure chamber forming substrate for forming a pressure chamber which is filled with liquid, a nozzle through which the ink is ejected in a direction along the pressure chamber forming substrate, and a communication flow path which allows the pressure chamber to communicate with the nozzle. The nozzle and the communication flow path are formed in the pressure chamber forming substrate.

Abstract: A wiper member 12 that wipes an anchoring plate exposed-surface 17b located on the opposite side of the head unit 16 of the anchoring plate 17 and the nozzle surface 22a. When an angle of contact between the nozzle surface 22a and the liquid is taken as ?n, an angle of contact between the anchoring plate exposed-surface 17b and the liquid is taken as ?s, and an angle of contact between the wiper member 12 and the liquid is taken as ?w, the relationship ?n>?s>?w>90° is fulfilled.

Abstract: Provided is an ultrasonic sensor including a piezoelectric elements arranged along a first direction and a second direction on a vibration plate, an insulation layer, and conductive lines. Each piezoelectric element including a first electrode, a piezoelectric layer, and a second electrode. The first electrode is partially removed in a regions between the piezoelectric elements. The second electrode is a separate electrode provided for each piezoelectric element. The insulation layer covers the second electrodes and has holes through which portions at opposite ends of the second electrodes along the first direction are partially exposed. Each conductive line is provided between adjacent ones of the second electrodes along the first direction and electrically connects, via the holes, the adjacent ones of the second electrodes.

Abstract: A cartridge 4 is mounted on a carriage 8 and has a liquid retaining member 460 placed in a recess 421 of a casing 420. A first side wall 425 constituting the casing 420 includes a first side wall part 425a and a second side wall part 425b aligned sequentially from a first end wall 423-side in a first direction from a first end wall 423 toward a second end wall 424. The first side wall part 425a includes a first side wall area 425a1 located on a bottom wall 422-side and extended to be substantially perpendicular to the bottom wall 422, and a second side wall area 425a2 arranged to be inclined with respect to the bottom wall 422. The second side wall part 425b is extended from the bottom wall 422 to be inclined with respect to the bottom wall 422. This configuration enables the liquid retaining member of containing a liquid such as ink to be compressed in the casing, while allowing for accurate positioning of the cartridge and improving attachment of the cartridge.

Abstract: A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold.

Abstract: A liquid ejecting head includes a pressure chamber forming substrate that forms a pressure chamber filled with ink, a nozzle that ejects the ink in a Z direction along the pressure chamber forming substrate, and a communicating flow path that allows the pressure chamber to communicate with the nozzle, in which the communicating flow path includes a first flow path along a Y direction intersecting the Z direction.

Abstract: A liquid ejecting head includes a plurality of pressure generators each including a first electrode individually provided therefor, the first electrode being located on a face of the flow path plate so as to correspond to one of the pressure chambers, a piezoelectric layer provided on the first electrode, and a second electrode provided on the piezoelectric layer; a lead electrode electrically connected to the first electrode; and a conductive layer provided in a section where the first electrode is partially exposed, the section being located in a region where the second electrode is not provided and the piezoelectric layer is exposed, at least a part of the conductive layer being in contact with the first electrode. The lead electrode is connected to the first electrode via the conductive layer.

Abstract: A liquid ejecting head includes a plurality of pressure generators each including a first electrode individually provided therefor, the first electrode being located on a face of the flow path plate so as to correspond to one of the pressure chambers, a piezoelectric layer provided on the first electrode, and a second electrode provided on the piezoelectric layer; a lead electrode electrically connected to the first electrode; and a conductive layer provided in a section where the first electrode is partially exposed, the section being located in a region where the second electrode is not provided and the piezoelectric layer is exposed, at least a part of the conductive layer being in contact with the first electrode. The lead electrode is connected to the first electrode via the conductive layer.

Abstract: A liquid ejecting head includes: a nozzle plate provided with nozzle openings; an actuator unit including a flow channel formation substrate in which pressure generation chambers are provided and piezoelectric actuators that cause a change in the pressure of the liquid within respective pressure generation chambers; a communication substrate in which communication channels that communicate between the pressure generation chambers and corresponding nozzle openings are provided; a first case member that is a frame member affixed to the communication substrate so that the actuator unit is disposed within the first case member and that, along with the actuator unit, forms a manifold that holds the liquid to be supplied to the pressure generation chambers; and a second case member that is affixed to the first case member and in which is formed an introduction channel that sends the liquid from the exterior to the manifold.