Ink cartridge and ink jet record apparatus using the ink cartridge
AssigneeSeiko Epson Corporation
InventorsKazuhiko Hara, Keiji Matsumoto, Shinri Sakai
Life of this patent
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Abstract
An ink cartridge is detachably connected to a record head and has a plurality of ink storage chambers 11 (containing third ink storage chamber 17) for containing ink whose concentration gradient occurs and an ink flow passage 18 for making the ink storage chambers communicate with each other. The ink flow passage 18 is implemented as such an ink flow passage where ink in a high-concentration ink layer a formed in a lower area in the ink storage chamber 11 and ink in a low-concentration ink layer b formed in an upper area flow and merge as ink is supplied to the record head.
Claims13
An ink cartridge for a recording apparatus, comprising a container having a plurality of ink compartments adjacent to each other and an ink flow passage for communicating the ink compartments with one another, wherein:
- the ink flow passage has such an ink flow passage as to cause ink in a lower area in one of the ink compartments and ink in an upper area in the one of the ink compartments to flow and merge with each other.
An ink cartridge for a recording apparatus, comprising:
- a container having ink compartments adjacent to each other and an ink supply port;
- a filter located in an upstream side with respect to the ink supply port in an ink flow direction;
- a partition wall partitioning the adjacent ink compartments one from the other, and being located in an upstream side with respect to the filter in the ink flow direction;
- and
- first and second communication ports formed through the partition wall, and respectively located at upper and lower positions in a gravity direction when the ink cartridge is mounted to the recording apparatus,
- wherein the adjacent ink compartments communicate with each other, respectively, through both the first and second communication ports.
Dependencies are inferred from the claim text.