Cancel type printing head

Details Cancel type printing head Cancel type printing head

1983-03-31

1985-04-16

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 312

Patent

active

045112690

ABSTRACT:
A printing head is disclosed in which each attraction member is driven by a magnetic attraction and an impact printing operation is carried out by a strain energy caused by a displacement of a spring member provided on the attraction member. The fulcrum of rotation of the attraction member is defined between the attraction member and a magnetic polar face of a yoke constituting a magnetic circuit together with the attraction member. Means for adjusting the resilient force of the spring member is engaged with a free end of the spring member.

REFERENCES:
patent: 3991869 (1976-11-01), Berrey
patent: 4368353 (1983-01-01), Ando et al.
IBM Tech. Disc. Bulletin, Lisinski, vol. 21, No. 1, Jun. 1978, p. 18, 400-124.

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