| US 7,600,857 B2 | ||
| Liquid discharge head | ||
| Hiroki Kihara, Kawasaki (Japan); Akihiko Shimomura, Yokohama (Japan); and Tadayoshi Inamoto, Tokyo (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Dec. 14, 2006, as Appl. No. 11/610,809. | ||
| Claims priority of application No. 2005-368138 (JP), filed on Dec. 21, 2005. | ||
| Prior Publication US 2007/0139467 A1, Jun. 21, 2007 | ||
| Int. Cl. B41J 2/05 (2006.01) | ||
| U.S. Cl. 347—56 [347/63; 347/65] | 5 Claims |
| 1. A liquid discharge head comprising:
a discharge element substrate including an energy generating element that generates energy for discharging liquid, a discharge
port provided so as to correspond to the energy generating element, and a supply path for supplying the liquid to the discharge
port,
wherein the discharge element substrate has an open face to which the discharge port is open, a back face of the open face,
and a side face formed between the open face and the back face, and at least a part of the side face is sealed by a sealing
agent,
wherein the sealing agent contains a filler made of fluororesin, and
wherein the filler is segregated in the sealing agent in the direction toward the open face from the back face.
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