Recording method and apparatus for controlling ejection bubble formation
AssigneeCanon Kabushiki Kaisha
InventorsKazuhiro Nakajima, Masanori Takenouchi, Toshiharu Inui, Yoshihisa Takizawa, Masashi Miyagawa, Hisao Yaegashi, Katsuhiro Shirota, Norio Ohkuma, Akira Asai
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Abstract
A liquid jet recording method includes applying thermal energy to liquid in a liquid passage to produce film boiling of the liquid to produce a bubble; permitting the bubble to communicate with ambience; wherein the liquid passage is not blocked in the communicating step.
Claims19
A liquid jet recording method using a liquid jet recording head having a liquid passage in fluid communication with an ejection outlet, wherein recording is performed by heating liquid in the liquid passage by ejection energy generating means to create a bubble which is effective to eject at least a part of the liquid from the ejection outlet, said method comprising the steps of:
- activating the ejection energy generating means to create a bubble and to grow the bubble to a neighborhood of the ejection outlet, by film boiling of the liquid;
- and
- ejecting the liquid through the ejection outlet, while the grown bubble is in fluid communication with ambience, using the ejection energy generating means which is disposed at such a position that the bubble communicates with the ambience at the ejection outlet, with an internal pressure of the bubble being lower than a pressure of the ambience.
A recording apparatus comprising:
- a recording head having a liquid passage in fluid communication with an ejection outlet to eject liquid therethrough;
- an ejection energy generating means for heating liquid in said liquid passage to create a bubble which is effective to eject at least a part of the liquid from said ejection outlet;
- and
- a driving circuit for supplying, to said ejection energy generating means, a signal for said energy generating means to create a bubble and to grow the bubble to a neighborhood of the ejection outlet, by film boiling of the liquid,
- wherein said recording head ejects the liquid through the ejection outlet, while the grown bubble is in fluid communication with ambience, using the ejection energy generating means which is disposed at such a position that the bubble communicates with ambience at the ejection outlet, with an internal pressure of the bubble being lower than a pressure of the ambience.
A liquid jet recording method using a liquid jet recording head having a liquid passage in fluid communication with an ejection outlet, wherein recording is performed by heating liquid in the liquid passage by ejection energy generating means to create a bubble which is effective to eject at least a part of the liquid from the ejection outlet, wherein said ejection outlet is provided faced to the ejection energy generating means, said method comprising the steps of:
- activating the ejection energy generating means to create and grow a bubble by film boiling of the liquid;
- and
- ejecting the liquid through the ejection outlet, while the grown bubble is in fluid communication with ambience, using the ejection energy generating means which is disposed at such a position that the bubble communicates with ambience at the ejection outlet, with an internal pressure of the bubble being lower than a pressure of the ambience.
Dependencies are inferred from the claim text.