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US 10,870,286 B2Granted
Ink cartridge having a swing body adapted to pivotally move smoothly even if ink is consumed
AssigneeCanon Kabushiki Kaisha
InventorRyo Shimamura
Life of this patent
Estimating the term…
Abstract
An ink cartridge includes an ink chamber that stores ink. A protruding chamber protrudes upward from the ink chamber in a gravitational direction when the ink cartridge is used. A swing body has a float and a detection portion, and a detection chamber in which the detection portion moves and with which an amount of ink stored in the ink chamber is detected in accordance with a position of the detection portion. In the ink cartridge, a pivot center of the swing body that pivotally moves is disposed inside the protruding chamber.
Claims11
An ink cartridge comprising:
- an ink chamber configured to store ink;
- a protruding chamber that protrudes upward from the ink chamber in a gravitational direction when the ink cartridge is used;
- a swing body having a float and a detection portion;
- and
- a detection chamber in which the detection portion is configured to move, wherein the detection chamber is configured to detect an amount of ink stored in the ink chamber in accordance with a position of the detection portion,
- wherein a pivot center of the swing body configured to pivotally move is disposed inside the protruding chamber,
- wherein the protruding chamber is in communication with the ink chamber through an opening provided in a member that forms the ink chamber, and
- wherein, in a direction intersecting the gravitational direction, a width of the member opening is equal to four-fifths of a width of the ink chamber or smaller than four-fifths of the width of the ink chamber.
5 more elements
Dependencies are inferred from the claim text.