Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Patent
1996-02-14
1998-10-13
Wong, Peter S.
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
B41J 2175
Patent
active
058219650
ABSTRACT:
Considering the differential pressure .DELTA.P between pressures applied to both faces of a meniscus formation member, the differential pressure .DELTA.P becomes the maximum when an ink supply unit is left standing with the meniscus formation member placed upward. At this time, water head PH of ink attempting to fall due to gravity is applied to the inner face of the meniscus formation member in the same direction as negative pressure PR of a capillary member. Thus, the differential pressure .DELTA.P becomes .DELTA.P=PR+PH. The bubble point pressure PB of the meniscus formation member is set greater than the maximum value of the differential pressure, .DELTA.P=PR+PH, whereby air does not enter an ink tank through the meniscus formation member.
REFERENCES:
patent: 3967286 (1985-06-01), Anderson et al.
patent: 4422084 (1983-12-01), Saito
patent: 4436439 (1984-03-01), Koto
patent: 4719479 (1988-01-01), Kyogoku
patent: 4994824 (1991-02-01), Winslow
patent: 5010354 (1991-04-01), Cowger et al.
patent: 5119115 (1992-06-01), Buat et al.
patent: 5158377 (1992-10-01), Suzuki et al.
patent: 5409138 (1995-04-01), Nakano
patent: 5509140 (1996-04-01), Koitabashi et al.
patent: 5552816 (1996-09-01), Oda et al.
patent: 5589862 (1996-12-01), Ujita et al.
Anonymous, "Replaceable Ink Cartridge for Ink Jet Print Head", IBM Technical Disclosure Bulletin, vol. 34, No. 1, Jun. 1991, pp. 459-462.
Fujii Katsuyuki
Fujimura Yoshihiko
Oda Kazuyuki
Ogawa Katsuhide
Takagi Jun
Fuji 'Xerox Co., Ltd.
Patel Rajnikant B.
Wong Peter S.
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