Typewriting machines – Typing by other than type-face or type-die – Character formation by impact
Patent
1994-09-22
1996-06-18
Wiecking, David A.
Typewriting machines
Typing by other than type-face or type-die
Character formation by impact
40012425, B41J 2265
Patent
active
055271189
ABSTRACT:
An improved wire dot print head for increased integrated density is provided. The wire dot print head includes a frame. A plurality of drive coils are mounted within the frame. A lever for driving print wires has a print wire mounted at one end and its other end formed as a hook to act as a rotation support member. When an excitement current flows through the coil, the lever is caused to move so that the print wires rotate about the rotation support member causing the print wires to strike a platen. The wires guided by guide holes which form a circular array at one armature end, and a row or rows at the printing end.
REFERENCES:
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patent: 4367962 (1983-01-01), Gaboardi
patent: 4569605 (1986-02-01), Meier et al.
patent: 4600321 (1986-07-01), Kwan
patent: 4653943 (1987-03-01), Sakaida et al.
patent: 4687355 (1987-08-01), Ikehata et al.
patent: 4767227 (1988-08-01), Mitsuishi et al.
Asada Takashi
Koshiishi Osamu
Nakazawa Yasuhiko
Shimomura Masaki
Seiko Epson Corporation
Wiecking David A.
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