Liquid ejecting head
AssigneeSeiko Epson Corporation
InventorsKazuaki UCHIDA, Toshiro MURAYAMA, Shunya FUKUDA
Life of this patent
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Abstract
A liquid ejecting head has: a nozzle plate defining a nozzle; a pressure generating section corresponding to a pressure chamber communicating with the nozzle and the section configured to cause a liquid to be ejected from the nozzle; a common flow path through which the liquid is to be supplied to and discharged from the pressure chamber; and a vibration absorbing body configured to eliminate changes in pressure in the common flow path. The vibration absorbing body and the nozzle plate each define an inner wall of the common flow path and an outer wall of the liquid ejecting head.
Claims20
A liquid ejecting head for ejecting a liquid to an outside, the head comprising:
- a nozzle plate on which a nozzle for ejecting the liquid is formed;
- a pressure generating section configured to cause the liquid to be ejected from the nozzle, the pressure generating section being disposed corresponding to a pressure chamber communicating with a communication path comprising the nozzle;
- a common flow path through which the liquid is supplied to and discharged from the communication path and the pressure chamber;
- and
- a vibration absorbing body configured to eliminate a change in pressure in the common flow path;
- wherein
- the vibration absorbing body is placed at a position at which
- one surface of the vibration absorbing body forms part of an inner wall of the common flow path, and
- another surface of the vibration absorbing body forms part of an outer wall of the liquid ejecting head, and
- the nozzle plate is placed at a position at which
- one surface of the nozzle plate forms part of an inner wall of the common flow path at a position different from the position at which the vibration absorbing body is placed, and
- another surface of the nozzle plate forms part of an outer wall of the liquid ejecting head.
A liquid ejecting head for ejecting a liquid to an outside, the head comprising:
- a nozzle plate on which a nozzle for ejecting the liquid is formed;
- a pressure generating section configured to cause the liquid to be ejected from the nozzle, the pressure generating section being disposed corresponding to a pressure chamber communicating with a communication path comprising the nozzle;
- a common flow path through which the liquid is supplied to and discharged from the communication path and the pressure chamber;
- and
- a vibration absorbing body configured to eliminate a change in pressure in the common flow path;
- wherein
- the vibration absorbing body is placed at a position at which
- one surface of the vibration absorbing body forms part of an inner wall of the common flow path, and
- another surface of the vibration absorbing body forms a void in the liquid ejecting head, and
- the nozzle plate is placed at a position at which
- one surface of the nozzle plate forms part of an inner wall of the common flow path at a position different from the position at which the vibration absorbing body is placed, and
- another surface of the nozzle plate forms part of an outer wall of the liquid ejecting head.
Dependencies are inferred from the claim text.