Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Patent
1994-11-04
1997-05-27
Le, N.
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
B41J 2175
Patent
active
056336675
ABSTRACT:
A self-aligning ring for receipt within the ink supply port of an ink cartridge is provided. The ring includes, on the side thereof facing the interior of the ink cartridge, a first annular seal member whose inner diameter is slightly smaller than the outer diameter of an ink supply needle of a recording head, and on the side thereof facing the exterior of the ink cartridge, the ring includes a second annular seal member whose outer diameter is slightly larger than the inner diameter of the ink supply port. The seal members are connected by a thin flexible connecting member. If the ink supply needle is not positioned precisely coaxial with respect to the ink supply port, or even if the ink supply needle is not positioned precisely perpendicular to a recording head, the first annular seal member is displaced to conform with the ink supply needle position by deforming only the thin connecting member, and is hermetically fitted to the ink supply needle. Thus, ink is prevented from leaking from this seal. Where a multichannel ink cartridge for color printing is provided, a self-aligning ring would be mounted in the ink supply port of each compartment for cooperation with an associated ink supply needle.
REFERENCES:
patent: 4162501 (1979-07-01), Mitchell et al.
patent: 4447820 (1984-05-01), Terasawa
patent: 4591875 (1986-05-01), McCann
patent: 5477963 (1995-12-01), Mochizuki et al.
Le N.
Seiko Epson Corporation
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