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US 10,946,646 B2Granted
Recording apparatus and control method therefor
AssigneeCanon Kabushiki Kaisha
InventorsKenichi Oonuki, Daisuke Kobayashi, Satoshi Seki, Tsukasa Doi
Life of this patent
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Abstract
Heating is conducted sequentially by dividing a heating operation into first heating control and second heating control consuming higher electric power than that in the first heating control.
Claims19
A recording apparatus comprising:
- a recording head including an ejection port for ejecting ink and a heating element for heating the recording head to heat ink in the recording head;
- a detection unit configured to detect a temperature of the recording head;
- an electric accumulation unit configured to accumulate electric power supplied from an external power supply;
- an acquisition unit configured to acquire information about an accumulated electricity amount accumulated in the electric accumulation unit;
- and
- a heating control unit configured to drive the heating element to heat the recording head such that the recording head temperature reaches a reached target temperature with use of the electric power accumulated in the electric accumulation unit based on a detection result of the recording head temperature by the detection unit and the acquired information,
- wherein, in a state in which the electric power is being supplied from the external power supply to the electric accumulation unit, the heating control unit conducts first heating control of heating the recording head to a middle target temperature and then heats the recording head in second heating control of consuming higher electric power than that in the first heating control to increase the recording head temperature to a reached target temperature, which is higher than the middle target temperature, and the heating control unit conducts the first heating control such that the accumulated electricity amount of the electric accumulation unit does not fall below an accumulated electricity amount required for the second heating control at a stage of moving from the first heating control to the second heating control.
4 more elements
A recording apparatus comprising:
- a recording head including an ejection port for ejecting ink and a heating element for heating the recording head to heat ink in the recording head;
- a first detection unit configured to detect a temperature of the recording head;
- an electric accumulation unit configured to accumulate electric power supplied from an external power supply;
- a second detection unit configured to detect supply power to be supplied from the external power supply to the electric accumulation unit;
- and
- a heating control unit configured to drive the heating element such that the recording head temperature reaches a target temperature based on a detection result of the recording head temperature by the first detection unit and the supply power detected by the second detection unit,
- wherein, in a state in which the electric power is being supplied from the external power supply to the electric accumulation unit, the heating control unit conducts first heating control of heating the recording head to a middle target temperature and then heats the recording head in second heating control of consuming higher electric power than that in the first heating control to increase the recording head temperature to an ultimate target temperature, which is higher than the middle target temperature and, in the first heating control, the heating control unit heats the recording head with electric power equal to or less than the supply power detected.
4 more elements
A method for controlling a recording apparatus, wherein the recording apparatus includes a recording head including an ejection port for ejecting ink and a heating element for heating the recording head to heat ink in the recording head, a detection unit configured to detect a temperature of the recording head, an electric accumulation unit configured to accumulate electric power supplied from an external power supply, and an acquisition unit configured to acquire information about an accumulated electricity amount accumulated in the electric accumulation unit, the method comprising:
- conducting heating control,
- wherein, in a state in which the electric power is being supplied from the external power supply to the electric accumulation unit, conducting includes using the heating element to conduct first heating control of heating the recording head to a middle target temperature and then heating the recording head in second heating control of consuming higher electric power than that in the first heating control to increase the recording head temperature to an ultimate target temperature, which is higher than the middle target temperature, and conducting the first heating control such that the accumulated electricity amount of the electric accumulation unit does not fall below an accumulated electricity amount required for the second heating control at a stage of moving from the first heating control to the second heating control.
Dependencies are inferred from the claim text.