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US 11,298,953 B2Granted
Printing apparatus
AssigneeCanon Kabushiki Kaisha
InventorsSae Mogi, Kazuo Suzuki, Shin Genta, Hiroshi Taira
Life of this patent
Estimating the term…
Abstract
A printing apparatus includes an ink tank that stores ink, a supply tube that supplies the ink from the ink tank, and a printing head that includes therein a pressure chamber arranged with an ejection port to eject the ink and performs reciprocal moving. The printing head includes a first liquid chamber that includes a connection portion with the supply channel, a second liquid chamber that communicates with the first liquid chamber by way of the pressure chamber, and a volume variable unit that changes an inner volume of the second liquid chamber.
Claims16
A printing apparatus, comprising:
- a tank configured to store ink;
- a printing head provided with an ejection port to eject ink and a pressure chamber to be filled with ink and configured to perform reciprocal moving;
- and
- a supply channel configured to supply ink from the tank to the printing head, wherein
- the printing head includes
- a first liquid chamber provided with a connection portion with the supply channel,
- a second liquid chamber configured to communicate with the first liquid chamber by way of the pressure chamber, and
- a volume variable unit configured to change an inner volume of the second liquid chamber.
5 more elements
Dependencies are inferred from the claim text.