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1. An ink storage device comprising an ink receiving portion, a sleeve, and a pin plug, whereinthe ink receiving portion is formed by a pair of plates which are combined by welding and sealing;the sleeve has a first end portion and a second end portion; the first end portion being communicated to the ink receiving portion and the second end portion exposes out of the ink receiving portion, and a penetrating hole is formed in the sleeve and is communicated to the ink receiving portion;the pin plug is made of an elastic material and is installed to the second end portion of the sleeve; a storage portion for storing the ink is formed in the pin plug, and an end of the pin plug is formed as a linking hole linking the ink receiving portion with the storage portion through the penetrating hole; another end of the pin plug is formed as a cut which is acted as valve.
2. An ink storage device as claimed in claim 1, wherein the edges of the pair of plates clamp the first end of the sleeve and peripheries of the plates are welded so as to be fixed with the sleeve.
3. An ink storage device as claimed in claim 1, wherein the penetrating hole has a diameter-enlarged space at an opening in the second end of the sleeve and the pin plug is plugged and fixed into the space.
4. An ink storage device as claimed in claim 2, wherein the penetrating hole has a diameter-enlarged space at an opening in the second end of the sleeve and the pin plug is plugged and fixed into the space.
5. An ink cartridge including:an ink storage device further comprising an ink receiving portion, a sleeve, and a pin plug, whereinthe ink receiving portion is formed by a pair of plates which are combined by welding and sealing;the sleeve has a first end portion and a second end portion; the first end portion being communicated to the ink receiving portion and the second end portion exposes out of the ink receiving portion, and a penetrating hole is formed in the sleeve and is communicated to the ink receiving portion;the pin plug is made of an elastic material and is installed to the second end portion of the sleeve; a storage portion for storing the ink is formed in the pin plug, and an end of the pin plug is formed as a linking hole linking the ink receiving portion with the storage portion through the penetrating hole; another end of the pin plug is formed as a cut which is acted as valve; anda frame for receiving the ink storage device.
6. An ink cartridge as claimed in claim 5, wherein the edges of the pair of plates clamp the first end of the sleeve and peripheries of the plates are welded so as to be fixed with the sleeve.
7. An ink cartridge as claimed in claim 5, wherein the penetrating hole has a diameter-enlarged space at an opening in the second end of the sleeve and the pin plug is plugged and fixed into the space.
8. An ink cartridge as claimed in claim 6, wherein the penetrating hole has a diameter-enlarged space at an opening in the second end of the sleeve and the pin plug is plugged and fixed into the space.
9. An ink cartridge as claimed in claim 5, wherein the frame is formed by a casing and a cover; the casing is a box having an opening, and the cover covers upon an opening of the casing; the casing has an arranging portion for receiving the ink storage device and an exposing portion for fixing the sleeve and exposing out a second end portion of the sleeve.
10. An ink cartridge as claimed in claim 6, wherein the frame is formed by a casing and a cover; the casing is a box having an opening, and the cover covers upon an opening of the casing; the casing has an arranging portion for receiving the ink storage device and an exposing portion for fixing the sleeve and exposing out a second end portion of the sleeve.
11. An ink cartridge as claimed in claim 7, wherein the frame is formed by a casing and a cover; the casing is a box having an opening, and the cover covers upon an opening of the casing; the casing has an arranging portion for receiving the ink storage device and an exposing portion for fixing the sleeve and exposing out a second end portion of the sleeve.
12. An ink cartridge as claimed in claim 8, wherein the frame is formed by a casing and a cover; the casing is a box having an opening, and the cover covers upon an opening of the casing; the casing has an arranging portion for receiving the ink storage device and an exposing portion for fixing the sleeve and exposing out a second end portion of the sleeve.
13. An ink cartridge as claimed in claim 9, wherein the sleeve has at least one notch, and at least one of the casing and the cover is formed with a positioning rib which is retained to the notch so as to determine a position of the ink storage device.
14. An ink cartridge as claimed in claim 10, wherein the sleeve has at least one notch, and at least one of the casing and the cover is formed with a positioning rib which is retained to the notch so as to determine a position of the ink storage device.
15. An ink cartridge as claimed in claim 11, wherein the sleeve has at least one notch, and at least one of the casing and the cover is formed with a positioning rib which is retained to the notch so as to determine a position of the ink storage device.
16. An ink cartridge as claimed in claim 12, wherein the sleeve has at least one notch, and at least one of the casing and the cover is formed with a positioning rib which is retained to the notch so as to determine a position of the ink storage device.
17. An ink cartridge as claimed in claim 9, wherein the opening of the casing has welding ribs and the cover has welding grooves at positions corresponding to those of the welding ribs.
18. An ink cartridge as claimed in claim 13, wherein the opening of the casing has welding ribs and the cover has welding grooves at positions corresponding to those of the welding ribs.
19. An ink cartridge as claimed in claim 9, wherein an inner wall of the cover facing the opening of the casing is formed with at least one inserting pin; a column sustaining portion is formed on a corresponding position in the casing; and a receiving hole receiving the inserting pin is formed on a top of the column sustaining portion.
20. An ink cartridge as claimed in claim 13, wherein an inner wall of the cover facing the opening of the casing is formed with at least one inserting pin; a column sustaining portion is formed on a corresponding position in the casing; and a receiving hole receiving the inserting pin is formed on a top of the column sustaining portion.
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