Recording head structure provided with ink reservoir section

Details Recording head structure provided with ink reservoir section Recording head structure provided with ink reservoir section

2005-01-11

2005-01-11

Vo, Anh T. N. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

Reexamination Certificate

active

06840611

ABSTRACT:
A covering member is installed on the upper face of a liquid storing chamber, which further covers a communicating for covering a gas-liquid separation member. For the ink jet cartridge, given the length of each of paths from the gas-liquid separation member to the atmosphere communication port as Ln, and the sectional area of each path as Sn, and then, the diffusion resistance R=Σ(Ln/Sn), and the coefficient K=10,000 (mg.mm/mm2), it is arranged to set the Ln and Sn to satisfy the K/V<R<2,000, provided that the total weight of liquid filled in the liquid storing chamber is V.

REFERENCES:
patent: 3953862 (1976-04-01), Amberntsson et al.
patent: 4771295 (1988-09-01), Baker et al.
patent: 5801737 (1998-09-01), Sato et al.
patent: 6257715 (2001-07-01), Thielman et al.
patent: 6474797 (2002-11-01), Kurata et al.
patent: 6612683 (2003-09-01), Takahashi et al.
patent: 6663233 (2003-12-01), Otsuka et al.
patent: 2000-334982 (2000-12-01), None

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