Liquid ejecting head and liquid ejecting apparatus
AssigneeToshiba Tec Kabushiki Kaisha
InventorsMengfei Wong, Ryutaro Kusunoki, Shuhei Yokoyama
Life of this patent
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Abstract
A liquid ejecting head includes a driving substrate including a driving element configured to, in response to a signal from an external controller, expand or contract so that a liquid is discharged from a pressure chamber through a nozzle, and a connection portion connecting the driving element to a wiring substrate connectable to the external controller; a sealing member that covers the connection portion and a part of the wiring substrate; and a mask plate partially covering a part of the driving substrate including the connection portion and contacting the sealing member.
Claims20
A liquid ejecting head comprising:
- a driving substrate including:
- a nozzle through which a liquid is to be discharged in a first direction,
- a driving element configured to, in response to a signal from an external controller, expand or contract so that the liquid is discharged from a pressure chamber through the nozzle, and
- a wiring line arranged below the driving element in the first direction and electrically connected to the driving element, the wiring line extending to a connection portion through which the driving element is electrically connected to a wiring substrate connectable to the external controller;
- a sealing member that covers a part of the wiring substrate, wherein an upper part of the sealing member is located farther from the wiring line than an upper surface of the driving substrate in the first direction;
- and
- a mask plate partially covering the sealing member, wherein the mask plate contacts the upper part of the sealing member from above in the first direction.
A liquid ejecting apparatus comprising:
- a controller;
- a liquid tank that stores liquid;
- and
- a liquid ejecting head connected to the liquid tank and comprising:
- a driving substrate including:
- a nozzle through which a liquid is to be discharged in a first direction,
- a driving element configured to, in response to a signal from the controller, expand or contract so that the liquid is discharged from a pressure chamber through the nozzle, and
- a wiring line arranged below the driving element in the first direction and electrically connected to the driving element, the wiring line extending to a connection portion through which the driving element is electrically connected to a wiring substrate connectable to the controller,
- a sealing member that covers a part of the wiring substrate, wherein an upper part of the sealing member is located farther from the wiring line than an upper surface of the driving substrate in the first direction, and
- a mask plate partially covering the sealing member, wherein the mask plate contacts the upper part of the sealing member from above in the first direction.
An image forming apparatus comprising:
- a controller configured to output a signal according to an image to be formed;
- an ink tank that stores ink;
- and
- an ink ejecting head connected to the ink tank and comprising:
- a driving substrate including:
- a nozzle through which the ink is to be discharged in a first direction, and
- a driving element configured to, in response to a signal from the controller, expand or contract so that the liquid is discharged from a pressure chamber through the nozzle, and
- a wiring line arranged below the driving element in the first direction and electrically connected to the driving element, the wiring line extending to a connection portion through which the driving element is electrically connected to a wiring substrate connectable to the controller,
- a sealing member that covers a part of the wiring substrate, wherein an upper part of the sealing member is located farther from the wiring line than an upper surface of the driving substrate in the first direction, and
- a mask plate partially covering the sealing member, wherein the mask plate contacts the upper part of the sealing member from above in the first direction.
Dependencies are inferred from the claim text.