Typewriting machines – Including type-set-assemblage mounted on carrier and... – Imprint by pivoting of type-head-carrier and type-head...
Patent
1984-04-25
1986-02-11
Burr, Edgar S.
Typewriting machines
Including type-set-assemblage mounted on carrier and...
Imprint by pivoting of type-head-carrier and type-head...
400166, 4001573, 101 9302, 101 9303, B41J 942, B41J 794
Patent
active
045696071
ABSTRACT:
A printing hammer rebound control system for use in impact-type printing machines is provided. The present system includes separate memory devices for storing the information of primary and its associated secondary energization. The primary energization is to move the printing hammer in the printing direction and the secondary energization is to slow down the hammer when it is in the returning motion. The present system applies an appropriate secondary energization in accordance with the intensity of the primary energization applied, thereby allowing to maintain the level of hammer rebound and production of noise at a minimum.
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A. B. Habich; "Print Hammer Rebound Control"; IBM Technical Disclosure Bulletin; vol. 22, No. 10, p. 4348; Mar. 1980.
IBM Technical Disclosure Bulletin; "Dual Coil Print Hammer"; Lee et al., vol. 22, No. 12, May 1980, p. 5398.
Burr Edgar S.
Ricoh & Company, Ltd.
Shoup Guy W.
Wiecking David A.
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