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AssigneeCanon Kabushiki Kaisha
InventorsItaru Watanabe, Mitsuru Kurata, Hiroki Tajima, Takayuki Ono, Hiroaki Shirakawa
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A liquid discharge head records by generating thermal energy to discharge ink from a discharge port onto a recording medium. The head is provided with a heat dissipating substrate positioned substantially parallel and adjacent to a discharge portion substrate, and a space, which communicates with the outside air, positioned at a surface of the heat dissipating substrate which is opposite the surface of the heat dissipating substrate facing the discharge portion substrate. The space extends in the scanning direction so as to facilitate air flow through the head during carriage movement in order to dissipate heat generated by the head during recording. A cooling fan may be provided to increase the air flow and the consequent heat dissipation.
A liquid discharge recording head adapted to execute recording by moving in opposed relationship to a recording medium and by discharging liquid from a discharge port, comprising:
A liquid discharge recording apparatus provided with a carriage capable of supporting a liquid discharge recording head adapted to execute recording by moving in opposed relationship to a recording medium and by discharging liquid from a discharge port by thermal energy generating means capable of generating thermal energy to be used for ink discharge, said liquid discharge recording head comprising a discharge portion substrate provided with said thermal energy generating means, a heat dissipating substrate positioned substantially parallel and adjacent to said discharge portion substrate, and a duct communicable with the atmospheric air, positioned at a rear surface of said heat dissipating substrate, opposite to a surface at a side of which said discharge portion substrate is positioned and opened in a direction along a moving direction of said liquid discharge recording head.
A liquid discharge recording head adapted to execute recording by moving in opposed relationship to a recording medium and by discharging liquid from a discharge port, comprising:
A liquid discharge recording head for recording by moving in opposition to a recording medium and by discharging liquid from a discharge port, comprising:
Dependencies are inferred from the claim text.