Liquid jetting head and liquid jetting apparatus incorporating the same
AssigneeSeiko Epson Corporation
InventorsSatoru Hosono, Hirofumi Teramae, Tomoaki Takahashi
Life of this patent
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Abstract
A pressure generating element is associated with a pressure chamber communicated with a nozzle orifice. The pressure generating element is operable to generate pressure fluctuation in liquid contained in the pressure chamber to eject a liquid droplet from the nozzle orifice, when a drive signal is supplied thereto. An identifier is provided with ID information including a first deviation of an ejected liquid amount from a designed value when a drive signal at a first, regular drive frequency is supplied, and a second deviation of an ejected liquid amount from the designed value when a drive signal at a second, operable maximum drive frequency is supplied.
Claims15
A liquid jetting head, comprising:
- a pressure generating element, associated with a pressure chamber communicated with a nozzle orifice, the pressure generating element operable to generate pressure fluctuation in liquid contained in the pressure chamber to eject a liquid droplet from the nozzle orifice, when a drive signal is supplied thereto;
- and
- an identifier, provided with ID information including a deviation of an ejected liquid amount from a designed value when a drive signal at a first, regular drive frequency is supplied.
A liquid jetting head, comprising:
- a pressure generating element, associated with a pressure chamber communicated with a nozzle orifice, the pressure generating element operable to generate pressure fluctuation in liquid contained in the pressure chamber to eject a liquid droplet from the nozzle orifice, when a drive signal is supplied thereto;
- and
- an identifier, provided with ID information including a deviation of an ejected liquid amount from a designed value when a drive signal at a drive frequency which is 1/N-times (N is an integer not less than 2) of a regular drive frequency is supplied.
A liquid jetting head, comprising:
- a pressure generating element, associated with a pressure chamber communicated with a nozzle orifice, the pressure generating element operable to generate pressure fluctuation in liquid contained in the pressure chamber to eject a liquid droplet from the nozzle orifice, when a drive signal is supplied thereto;
- and
- an identifier, provided with ID information including a first deviation of an ejected liquid amount from a designed value when a drive signal at a first drive frequency which is N-times (N is an integer not less than 1) of a regular drive frequency is supplied, and a second deviation of an ejected liquid amount from a designed value when a drive signal at a second drive frequency which is 1/N-times (N is an integer not less than 2) of the regular drive frequency is supplied.
A liquid jetting head, comprising:
- a pressure generating element, associated with a pressure chamber communicated with a nozzle orifice, the pressure generating element operable to generate pressure fluctuation in liquid contained in the pressure chamber to eject a liquid droplet from the nozzle orifice, when a drive signal is supplied thereto;
- and
- an identifier, provided with ID information including a first deviation of an ejected liquid amount from a designed value when a drive signal at a first, regular drive frequency is supplied, and a second deviation of an ejected liquid amount from the designed value when a drive signal at a second, operable maximum drive frequency is supplied.
Dependencies are inferred from the claim text.