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US 6,802,595 B2Granted
Ink-jet recording head and ink-jet recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorMichinari Mizutani
Life of this patent
Estimating the term…
Abstract
A flexible-film wire substrate is bent at first, second and third bent portions. Wires of a flexible wire pattern are deflected at least between the second bent portion and the third bent portion so that a pitch increases from the second bent portion toward the third bent portion. By bending the first, second and third bent portions so that the wires are substantially orthogonal to each bending line, the flexible-film wire substrate can be excellently bent without influencing the flexible wire pattern on the flexible-film wire substrate.
Claims12
An ink-jet recording head comprising:
- a flexible-film wire substrate;
- a recording-element substrate comprising energy generation elements for generating energy for discharging a recording liquid, said recording-element substrate being electrically connected to said flexible-film wire substrate;
- and
- a wire substrate where a signal for controlling generation of the energy on said recording-element substrate is input from an external apparatus, said wire substrate being electrically connected to said recording-element substrate via a plurality of wires formed on said flexible-film wire substrate,
- wherein said flexible-film wire substrate is bent so as to provide a first crest portion near said recording-element substrate, a second crest portion near said wire substrate, and a valley portion positioned between the first crest portion and the second crest portion,
- wherein a bent portion of each of the first crest portion and the second crest portion is substantially linear over the entire region,
- wherein the plurality of wires are deflected so that a pitch increases from the valley portion to the second crest portion on said flexible-film wire substrate at least between the valley portion and the second crest portion, and
- wherein the plurality of wires are substantially orthogonal to respective bent portions of the first crest portion, the second crest portion and the valley portion.
5 more elements
Dependencies are inferred from the claim text.