Ink-supply system for a dot matrix printer

Details Ink-supply system for a dot matrix printer Ink-supply system for a dot matrix printer

1990-11-30

1992-12-29

Wiecking, David A.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

4004711, B41J 2305

Patent

active

051746654

ABSTRACT:
An ink-supply system for a dot matrix printer including an ink-supply tank having an ink-supply delivery port and an ink absorbing member having at least two separate porous members disposed as stacked layers, one of the porous members which is closer to the ink-supply delivery port being made of a porous material having a smaller average pore size than the porous material of the other porous member more remote from the ink-supply delivery port.

REFERENCES:
patent: 3441950 (1969-04-01), Miller
patent: 4095237 (1978-06-01), Amberntsson et al.
patent: 4194846 (1980-03-01), Zerillo
patent: 4279519 (1981-07-01), Shiurila
patent: 4336767 (1982-06-01), Wada
patent: 4353654 (1982-10-01), Shiurila
patent: 4400102 (1983-08-01), Shiurila et al.
patent: 4403874 (1983-09-01), Payne et al.
patent: 4456393 (1984-06-01), Gomi et al.

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