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US 8,007,069 B2Granted
Ink jet recording head
AssigneeCanon Kabushiki Kaisha
InventorsAkihiko Shimomura, Toshihiko Ujita, Takashi Fukushima
Life of this patent
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Abstract
An ink jet recording head comprises a discharge port forming member that forms a discharge port used to discharge ink and a channel forming member that forms an ink channel communicating with the discharge port, at least either one of the channel forming member and the discharge port forming member comprising a substance having fluorine atoms and a rubber member composing a part of an ink passage continuous with the channel, the rubber member being cross-linked by an organic substance.
Claims10
An ink jet recording head comprising:
- a substrate including a discharge port member provided with a discharge port used to discharge ink, and a channel member provided with a part of an ink channel communicating with the discharge port and a supply opening used to supply ink to the channel, at least one of the channel member and the discharge port member comprising a substance having a fluorine atom;
- a support member for supporting the substrate, the support member provided with a part of an ink passage continuous with the supply opening;
- a supply passage defining member provided with a supply passage communicating with the ink passage;
- and
- a rubber member disposed between the support member and the supply passage defining member and forming a part of the supply passage and a part of the ink passage, the rubber member being cross-linked by an organic substance.
2 more elements
Dependencies are inferred from the claim text.