IP Library › Granted Patent US 7,585,065
Granted Patent B2
US 7,585,065 · App. 11/535,466 · Granted Sep 8, 2009

Ink-jet recording apparatus

Assignee: Brother Kogyo Kabushiki Kaisha
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Quick Facts
Patent No.
US 7,585,065
App. No.
11/535,466
Granted
Sep 8, 2009
Kind
B2
Abstract

One embodiment of the invention relates to an ink-jet recording apparatus comprising an ink-jet head with an ink passage having an inner volume and a preservative in the ink passage in a preservative residual ratio of no greater than 10%. Another embodiment of the invention relates to a preservative having water, a penetrant, and a humectant. A further embodiment of the invention relates to a processing method involving filling an inner volume of an ink passage in an ink-jet recording apparatus with a preservative and removing a portion of the preservative from the inner volume such that a preservative residual ratio is no greater than 10%.

Claims (26)

1. An inkjet recording apparatus comprising:

an ink-jet head comprising an ink passage having an inner volume; and

a preservative in the ink passage, such that a preservative residual ratio is no greater than 10% of the inner volume.

2. The ink-jet recording apparatus according to claim 1 , wherein the ink-jet recording apparatus further comprises a piezoelectric element.

3. The ink-jet recording apparatus according to claim 1 , wherein the ink-jet recording apparatus further comprises a thermal-ejection system.

4. The ink-jet recording apparatus according to claim 1 , wherein the ink passage comprises aluminum or stainless steel.

5. The inkjet recording apparatus according to claim 1 , further comprising an adhesive.

6. The ink-jet recording apparatus according to claim 1 , further comprising a rubber member.

7. The ink-jet recording apparatus according to claim 1 , wherein a dynamic surface tension of the preservative is between about 30 mN/m and 40 mN/m, as measured at 25° C., at a lifetime of 100 ms using a maximum bubble pressure method.

8. The ink-jet recording apparatus according to claim 1 , wherein the preservative comprises glycol ether in an amount from about 3 wt. % to about 10 wt. % of an overall weight of the preservative.

9. The ink-jet recording apparatus according to claim 1 , where the preservative comprises a monoalcohol.

10. An ink-jet recording apparatus comprising:

an ink-jet head means for containing a preservative and allowing flow of ink; and

a preservative means for limiting a preservative residual ratio to no greater than 10% of an inner volume of the inkjet head means.

11. The ink-jet recording apparatus according to claim 10 , further comprising a means for piezoelectric printing.

12. The ink-jet recording apparatus according to claim 10 , further comprising a means for thermal-ejection printing.

13. A processing method comprising:

filling an inner volume of an ink passage in an ink-jet recording apparatus with a preservative; and

removing a portion of the preservative from the inner volume, such that a preservative residual ratio is no greater than 10%.

14. The method according to claim 13 , further comprising clamping a nozzle cap of the apparatus.

15. The method according to claim 13 , further comprising sealing a nozzle cap of the apparatus with a sealing bag.

16. The method according to claim 13 , further comprising storing the ink-jet apparatus.

17. The method according to claim 13 , further comprising shipping the ink-jet apparatus.

18. The method according to claim 13 , further comprising reducing a rate of ink-jet failure of the ink-jet recording apparatus when ink-jet recording apparatus is first used for printing.

19. The method according to claim 13 , further comprising reducing an amount of a constituent material of the ink-jet apparatus dissolved by the preservative.

20. The method according to claim 13 , further comprising facilitating the flow of an ink into the ink passage ink-jet recording apparatus when ink-jet recording apparatus is first used for printing.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 26, 2006
From: TSUDA, MASASHI
To: BROTHER KOGYO KABUSHIKI KAISHA
Reel/Frame 018307/0450 →
Priority Claims (1)
JP 2005-287816 · Sep 30, 2005 · national
Continuity (1)
Related Publication 20070076041A1 · Apr 5, 2007