Recording head and apparatus employing multiple temperature sensors to effect temperature control
AssigneeCanon Kabushiki Kaisha
InventorAsao Saito
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Abstract
The object of the present invention is to control temperature sensors and heaters provided to a plurality of elemental substrates to appropriately perform temperature control for each of the elemental substrates, wherein a multiplexer 13 is connected to temperature sensors provided to each of a plurality of elemental substrates 14, and the detection signals of these temperature sensors are selectively output from terminals 10 of the head 20 via the multiplexer 13.
Claims20
A recording head for performing recording on a recording medium, said recording head comprising:
- a plurality of recording units each further comprising a recording device for performing recording on a recording medium and a temperature detecting sensor;
- a base supporting said plurality of recording units, said recording units being disposed upon said base so as to form said recording head;
- and
- a selection circuit for selectively outputting from the head to portions other than the head a detection signal from each of said sensors of each of said recording units for detecting a variation of temperature in the head.
A recording head for performing recording on a recording medium, said recording head comprising:
- a plurality of recording units each further comprising a recording device for performing recording on a recording medium and a temperature adjusting heater;
- a base supporting said plurality of recording units, said recording units being disposed upon said base so as to form said recording head;
- and
- a selection circuit for selectively driving said temperature adjusting heaters of said plurality of recording units in order to reduce a variation in a temperature of the head.
Dependencies are inferred from the claim text.