Liquid discharge head
AssigneeCanon Kabushiki Kaisha
InventorsYasunori Takei, Yoshinori Tagawa
Life of this patent
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Abstract
According to an aspect of the present invention, a liquid discharge head includes a discharge outlet configured to discharge a liquid, wherein a division member dividing the discharge outlet into a plurality of regions is formed in the discharge outlet when viewed from a position facing the discharge outlet, wherein, when a direction in which the liquid is discharged from the discharge outlet is a direction upward from bottom, the division member has a first surface and a second surface facing upward, and wherein the second surface is disposed at the bottom lower than the first surface.
Claims20
A liquid discharge head comprising:
- a discharge outlet configured to discharge a liquid,
- wherein a division member dividing the discharge outlet into a plurality of regions is formed in the discharge outlet when viewed from a position facing the discharge outlet,
- wherein, when a direction in which the liquid is discharged from the discharge outlet is a direction upward from bottom, the division member has a first surface and a second surface facing upward,
- wherein the second surface is disposed at the bottom lower than the first surface, and
- wherein a contact angle between the first surface and the liquid is 80 degrees or more and 100 degrees or less.
A discharge method comprising:
- ejecting a liquid from a discharge outlet, using a liquid discharge head including the discharge outlet configured to discharge the liquid and an energy generation element configured to generate energy for discharging the liquid from the discharge outlet,
- wherein a division member dividing the discharge outlet into a plurality of regions is formed in the discharge outlet when viewed from a position facing the discharge outlet,
- wherein, when a direction in which the liquid is discharged from the discharge outlet is a direction upward from bottom, the division member has a first surface and a second surface facing upward,
- wherein the second surface is disposed at the bottom lower than the first surface,
- wherein the liquid is discharged from the discharge outlet by driving the energy generation element, in a state where the liquid is present at a position lower than the first surface and higher than the second surface,
- wherein the discharge outlet is divided into three or more regions by the division member, and
- wherein a tailing portion of the liquid discharged from the discharge outlet is divided into a number equal to the number of the plurality of regions.
Dependencies are inferred from the claim text.