Liquid discharge head
AssigneeCanon Kabushiki Kaisha
InventorsKyosuke Nagaoka, Hirotomo Taniguchi, Roy Josephus Stephanus Derks, Peter Joseph Hollands, Hans Reinten
Life of this patent
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Abstract
A liquid discharge head includes a discharge port through which a liquid is discharged, an element for discharging the liquid from the discharge port, a channel through which the liquid is supplied to the discharge port, and a film member that is provided so as to be in contact with the liquid in a liquid chamber in the channel. The film member has a corrugated structure in which a plurality of loop-shaped projecting portions and a plurality of loop-shaped recessed portions are alternately formed. When seen in a direction perpendicular to a plane of the film member, the corrugated structure has a loop shape having a linear portion.
Claims15
A liquid discharge head comprising:
- a discharge port through which a liquid is discharged;
- an element for discharging the liquid from the discharge port;
- a channel through which the liquid is supplied to the discharge port;
- and
- a film member that is provided so as to be in contact with the liquid in a liquid chamber in the channel,
- wherein the film member has a corrugated structure in which a plurality of loop-shaped projecting portions and a plurality of loop-shaped recessed portions are alternately formed, and
- wherein, when seen in a direction perpendicular to a plane of the film member, the corrugated structure has a loop shape having at least one linear portion.
A liquid discharge apparatus comprising:
- a liquid discharge head including
- a containing section that contains a liquid,
- a discharge port to which the liquid is supplied from the containing section and through which the liquid is discharged,
- an element for discharging the liquid from the discharge port,
- a channel through which the liquid is supplied to the discharge port, and
- a film member that is provided so as to be in contact with the liquid in a liquid chamber in the channel,
- wherein the film member has a corrugated structure in which a plurality of loop-shaped projecting portions and a plurality of loop-shaped recessed portions are alternately formed, and
- wherein, when seen in a direction perpendicular to a plane of the film member, the corrugated structure has a loop shape having a linear portion.
Dependencies are inferred from the claim text.