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US 9,315,058 B2Granted
Image recording apparatus, image recording method, and non-transitory computer-readable storage medium
AssigneeCanon Kabushiki Kaisha
InventorsTaku Yokozawa, Hiroaki Shirakawa, Mitsutoshi Nagamura, Yuhei Oikawa, Yosuke Ishii, Hiroaki Komatsu
Life of this patent
Estimating the term…
Abstract
According to an aspect of the present invention, temperatures at a plurality of different positions in an array direction in an ejection opening array are detected, and heating by a heating element is executed in a case where a temperature difference between the temperatures is higher than a predetermined threshold.
Claims22
An image recording apparatus comprising:
- a recording head including at least a substrate, a recording element array in which a plurality of recording elements that are arranged on the substrate in a predetermined direction and generate thermal energy for ejecting ink of a predetermined color, a first detection element that detects a temperature in a vicinity of the recording element at a first position in the predetermined direction in the recording element array, a second detection element that detects a temperature in a vicinity of the recording element at a second position that is different from the first position in the predetermined direction in the recording element array, and a heating element that performs heating of ink in the vicinity of the recording elements at the first position and the second position among the plurality of the recording elements arranged in the recording element array;
- and
- a control unit that controls the heating by the heating element on the basis of the temperatures detected by the first and second detection elements, wherein
- the control unit controls the heating by the heating element in a manner that the heating by the heating element is executed in a case where a temperature difference between the temperature detected by the first detection element and the temperature detected by the second detection element is higher than a first threshold.
1 more element
An image recording method comprising:
- using a recording head including at least a substrate, a recording element array in which a plurality of recording elements that are arranged on the substrate in a predetermined direction and generate thermal energy for ejecting ink of a predetermined color, a first detection element that detects a temperature in a vicinity of the recording element at a first position in the predetermined direction in the recording element array, a second detection element that detects a temperature in a vicinity of the recording element at a second position that is different from the first position in the predetermined direction in the recording element array, and a heating element that performs heating of ink in the vicinity of the plurality of recording elements arranged in the recording element array;
- and
- controlling the heating by the heating element on the basis of the temperatures detected by the first and second detection elements to record an image, wherein
- the heating by the heating element is controlled in a manner that the heating by the heating element is executed in a case where a temperature difference between the temperature detected by the first detection element and the temperature detected by the second detection element is higher than a first threshold, and also the heating by the heating element is stopped in a case where the temperature difference is lower than or equal to a second threshold.
1 more element
An image recording apparatus comprising:
- a recording head including at least a substrate, a recording element array in which a plurality of recording elements that are arranged on the substrate in a predetermined direction and generate thermal energy for ejecting ink of a predetermined color, a first detection element that detects a temperature in a vicinity of the recording element at one end part in the predetermined direction in the recording element array, a second detection element that detects a temperature in a vicinity of the recording element at a central part in the predetermined direction in the recording element array, and a heating element that performs centrally heating of ink in the vicinity of the recording element at the one end part rather than heating of ink in the vicinity of recording element at the central part;
- and
- a control unit that controls the heating by the heating element on the basis of the temperatures detected by the first and second detection elements, wherein
- the control unit controls the heating by the heating element in a manner that the heating by the heating element is executed in a case where a temperature difference between the temperature detected by the first detection element and the temperature detected by the second detection element is higher than a predetermined threshold.
1 more element
Dependencies are inferred from the claim text.