Claims
- 1. An ink container for containing ink to be supplied to an ink jet recording head for ejecting ink in accordance with recording signals, said ink container comprising:
- an outer casing having a polygonal cross-section; and
- a flexible bag, disposed in said outer casing, having the same polygonal cross-section as said casing when said bag is filled with ink, said flexible bag having an opening at a first end thereof and a bottom portion opposed to said opening, said bag being deformable to reduce a volume thereof with consumption of the ink therefrom, wherein said bag is formed from a sheet material and includes seams in opposite sides of said bag, said seams including a first seam extending in a first direction from said opening to said bottom portion and a second seam extending in a second direction that crosses the first direction, and said bag has continuous folds in other opposite sides thereof and in a bottom side thereof, said folds being adapted to fold inwardly of said bag with resistance provided by said seams.
- 2. A container according to claim 1, wherein said flexible bag has an elasticity that resists collapse such that ink supply from said bag stops when an internal pressure in said bag reaches -180 mmAq.
- 3. A container according to claim 1, wherein said bag has a folding score in another side for permitting said bag to collapse along the score with consumption of the ink therein.
- 4. A container according to claim 1, wherein said flexible bag comprises a film of laminated structure which is overlaid and fused at said seams.
- 5. An ink container comprising:
- an outer casing having a polygonal cross-section;
- a flexible bag, disposed in said outer casing, having the same polygonal cross-section as said casing when said bag is filled with ink, said flexible bag having an opening at a first end thereof and a bottom portion opposed to said opening, wherein said bag is formed from a sheet material and includes seams on a side of said bag, said seams including a first seam extending in a first direction from said opening to said bottom portion and a second seam extending in a second direction that crosses the first direction; and
- a plug having the same polygonal cross-section as said outer casing for plugging the opening of said bag, said plug having a flange to which said outer casing is mounted and an ink outlet, wherein said plug has sealing means extending along its outer periphery for forming a sealing connection with said bag, and an outer peripheral length of said plug is smaller than a peripheral length of said bag adjacent the opening such that a surplus portion of said bag is gathered at a corner of the polygonal shape and sealed.
- 6. A container according to claim 5, wherein said sealing means is a groove.
- 7. A container according to claim 5, wherein said sealing means is a rib.
- 8. An ink container for containing ink to be supplied to an ink jet recording head for ejecting ink in accordance with recording signals, said ink container comprising:
- an outer casing having a polygonal cross-section;
- a flexible bag, disposed in said outer casing, having the same polygonal cross-section as said casing when said bag is filled with ink, said flexible bag having an opening at a first end thereof; and
- means for limiting deformation of said flexible bag upon consumption of the ink, said limiting means comprising seams in opposite sides of said bag for forming said flexible bag from a sheet material, wherein said bag has continuous folds in other opposite sides thereof and in a bottom side thereof, said folds being adapted to fold inwardly of said bag with resistance provided by said seams.
- 9. An ink container for containing ink to be supplied to an ink jet recording head for ejecting ink in accordance with recording signals, said ink container comprising:
- an outer casing having a polygonal cross-section; and
- a flexible bag, disposed in said outer casing, having the same polygonal cross-section as said casing when said bag is filled with ink, said flexible bag having an opening at a first end thereof and a bottom portion opposed to said opening, said bag being deformable to reduce a volume thereof with consumption of the ink therefrom, wherein said bag has folds including a combination of a convex fold and a concave fold, by which the bag collapses into a predetermined shape with consumption of the ink from said ink container.
Priority Claims (3)
Number |
Date |
Country |
Kind |
4-054902 |
Mar 1992 |
JPX |
|
4-054903 |
Mar 1992 |
JPX |
|
4-329293 |
Dec 1992 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 08/415,588 filed Apr. 3, 1995, now abandoned, which is a continuation of application Ser. No. 08/031,308, now abandoned, filed Mar. 15, 1993.
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Continuations (2)
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Number |
Date |
Country |
Parent |
414588 |
Apr 1995 |
|
Parent |
31308 |
Mar 1993 |
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