Claims
- 1. A liquid container comprising:a first chamber for accommodating a negative pressure producing material and having an air communication part for communication with ambient air; a second chamber defined by plural walls including side walls and a partition wall which partitions said second chamber from said first chamber, said second chamber being substantially closed except for a liquid communication part defined by said partition wall for communication with said first chamber, said second chamber containing a reservoir of liquid for being supplied to said first chamber; and a deformation preventing member in said second chamber for preventing deformation of a large inside area of the side walls of said second chamber, wherein the liquid communication part includes a first gap separating a lower portion of the partition wall from a lower one of the plural walls of said second chamber, and wherein said deformation preventing member and the lower wall are separated by a second gap that is a free gap and is larger than the first gap.
- 2. A liquid container according to claim 1, wherein said deformation preventing member is comprised by a plate-like member.
- 3. A liquid container according to claim 2, wherein said deformation preventing member is formed integrally with at least one of the plural walls.
- 4. A liquid container according to claim 1, wherein said first chamber is defined by plural walls, and wherein at least one wall of said first chamber is 1.3 to 3 times a thickness of one of said plural walls constituting said second chamber.
- 5. A liquid container according to claim 1, wherein said container contains printing liquid.
- 6. A liquid container according to claim 1, wherein said second chamber is enlarged upwardly.
- 7. A liquid container according to claim 1, wherein a plurality of such containers are integrated together.
- 8. A liquid container according to claim 7, wherein respective ones of said plurality of containers contain yellow, magenta and cyan inks.
- 9. A liquid container according to claim 1, wherein the first and second chambers are separated by an inclined partition wall.
- 10. A liquid container according to claim 1, wherein said deformation preventing member has a length shorter than that of said partition wall.
- 11. A liquid container connectable to an ink jet recording head for an ink jet recording apparatus, said liquid container comprising a first chamber containing negative pressure producing material and having an outlet arranged, in use, at a lower part of the liquid container and connectable to the ink jet head to supply liquid from the liquid container to the ink jet head and an air vent for allowing ambient air into the first chamber, a second chamber, having plural walls, one of which partitions said second chamber from said first chamber, said second chamber communicating with the first chamber through a communication part disposed, in use, at the lower part of the liquid container and providing a liquid reservoir for the first chamber, the communication part including a first gap that separates a lower one of the plural walls from a lower portion of the wall partitioning said first and second chambers, the second chamber having deformation inhibiting means for preventing or at least inhibiting deformation of the second chamber that otherwise would be caused by gripping of the second chamber, wherein said deformation inhibiting means and the lower wall are separated by a second gap that is a free gap and is larger than the first gap.
- 12. A liquid container according to claim 11, wherein said deformation inhibiting means comprises at least one rib extending into the second chamber.
- 13. A liquid container according to claim 11, wherein said deformation inhibiting means is provided by an external shape of the second chamber.
- 14. A liquid container according to claim 11, wherein said deformation inhibiting means is provided by an inner surface of said second chamber which curves and rises away from the communication part to inhibit deformation of the container otherwise caused by gripping of the second chamber by a user.
- 15. A liquid container according to claim 11, wherein a wall defining said first chamber is 1.3 to 3 times thicker than a wall defining said second chamber.
- 16. A liquid container according to claim 11, wherein said container contains printing liquid.
- 17. A liquid container according to claim 11, wherein said second chamber is enlarged upwardly.
- 18. A liquid container according to claim 11, wherein a plurality of such containers are integrated together.
- 19. A liquid container according to claim 18, wherein respective ones of said plurality of containers contain yellow, magenta and cyan inks.
- 20. A liquid container according to claim 11, wherein the first and second chambers are separated by an inclined partition wall.
- 21. An ink jet recording assembly comprising a liquid container in accordance with claim 11 and an ink jet head attachable to and detachable from a cartridge.
- 22. An ink jet recording apparatus, comprising:a carriage carrying an ink jet recording head and a liquid container in accordance with claim 11, the carriage having a mounting portion for mounting said container to supply printing liquid to the ink jet head.
- 23. A liquid container comprising:a first chamber for accomodating a negative pressure producing material and having an air communication part for communication with ambient air; a second chamber defined by plural walls including side walls and a partition wall which partitions said second chamber from said first chamber, said second chamber being substantially closed except for a liquid communication part defined by said partition wall for communication with said first chamber, said second chamber containing a reservoir of liquid for being supplied to said first chamber; and a deformation preventing member in said second chamber for preventing deformation of a large inside area of the side walls of said second chamber, wherein the liquid communication part includes a first gap separating an end portion of the partition wall from such one of the plural walls of said second chamber as is opposed to the end portion of he partition wall, and wherein said deformation preventing member and the opposed wall are separated by a second gap that is a free gap and is larger than the first gap.
Priority Claims (2)
Number |
Date |
Country |
Kind |
4-198474 |
Jul 1992 |
JP |
|
5-122620 |
May 1993 |
JP |
|
FIELD OF THE INVENTION AND RELATED ART
This application is a division of application Ser. No. 08/094,313 filed Jul. 21, 1993 now U.S Pat. No. 5,619,238.
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