Recording head and recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorKen Tsuchii
Life of this patent
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Abstract
A recording head has a channel forming member and an element substrate. A discharge port through which liquid is discharged is formed in the channel forming member. An energy generating element for discharging the liquid is formed in the substrate. A gap forming member is arranged above the channel forming member. A moisture retention liquid retention portion which retains moisture in the vicinity of the discharge port is formed between the gap forming member and the channel forming member so as to be opened toward the discharge port side. Even if the state in which the liquid is not discharged continues, the liquid in the discharge port can be prevented from drying with the recording head having the above configuration.
Claims11
A recording head comprising:
- an energy generating element which generates energy utilized in order to discharge liquid;
- a channel forming member which has a discharge port surface, a discharge port which discharges the liquid being provided in the discharge port surface, and the channel forming member being communicated with the discharge port;
- and
- a gap forming member which faces the discharge port surface, the gap forming member being arranged such that a gap is provided between the discharge port surface and the gap forming member except at a position corresponding to the discharge port,
- wherein an opening portion which is opened at a discharge port side of said gap forming member is formed for said gap forming member, the gap retains moisture retention liquid, and a liquid surface of the moisture retention liquid is formed at the opening portion.
Dependencies are inferred from the claim text.