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US 12,358,278 B2Granted
Recording apparatus and control method
AssigneeCanon Kabushiki Kaisha
InventorsSae Mogi, Kazuo Suzuki, Masataka Kato, Masaki Nitta, Takeshi Murase, Hiroshi Taira, Hiroshi Kawafuji
Life of this patent
Estimating the term…
Abstract
A recording apparatus includes recording elements to eject ink, heating elements to heat the ink, and a common wiring through which the recording elements and the heating elements are applied with a voltage. The recording apparatus determines a drive pulse applied to the recording elements based on the number of recording elements to be simultaneously driven and the number of heating elements to be simultaneously driven.
Claims14
A recording apparatus comprising:
- a recording head including a recording element substrate on which a plurality of recording elements and a plurality of heating elements are provided, the plurality of recording elements being configured to eject ink, the plurality of heating elements being configured to heat the ink without ejecting the ink, and a common wiring for an application of a drive voltage from a drive power supply being connected to the recording element substrate;
- an obtaining unit configured to obtain both a first number of recording elements to be driven in a predetermined period of time among the plurality of recording elements and a second number of heating elements to be driven in the predetermined period of time among the plurality of heating elements;
- and
- a control unit configured to determine, based on the first number and the second number, a drive pulse for applying a voltage to the plurality of recording elements, and to respectively control driving of the plurality of recording elements and driving of the plurality of heating elements, based on the determination.
1 more element
A control method comprising:
- obtaining, in a recording head including a recording element substrate on which a plurality of recording elements and a plurality of heating elements are provided, the plurality of recording elements being configured to eject ink, the plurality of heating elements being configured to heat the ink without ejecting the ink, a common wiring for an application of a drive voltage from a drive power supply being connected to the recording element substrate, both a first number of recording elements to be driven in a predetermined period of time among the plurality of recording elements and a second number of heating elements to be driven in the predetermined period of time among the plurality of heating elements;
- and
- determining, based on the first number and the second number, a drive pulse for applying a voltage to the plurality of recording elements.
Dependencies are inferred from the claim text.