Component of printing head for wire-impact type dot printer and

Details Component of printing head for wire-impact type dot printer and Component of printing head for wire-impact type dot printer and

1994-03-04

1995-03-28

Burr, Edgar S.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

40012432, B41J 227

Patent

active

054011078

ABSTRACT:
Disclosed are a magnetic circuit component of an impact dot head and a molding method thereof by which the number of parts is reduced, and an excellent magnetic efficiency is exhibited.
At least one member among a plurality of members constituting a magnetic circuit component (e.g., a core block 1) of a printing head is injection-molded after kneading a binder with metallic powder of a magnetic substance. The single member is sintered by joining it to another molded member after effecting de-binder processing, thus manufacturing the component.

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patent: 5141554 (1991-06-01), Kijima

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