Print hammer assembly for dot line printer

Details Print hammer assembly for dot line printer Print hammer assembly for dot line printer

1992-04-27

1993-07-20

Burr, Edgar S.

Printing

Selective or progressive

Bed and platen machines

101 9305, 400124, 4001572, B41J 300

Patent

active

052283860

ABSTRACT:
In a print hammer assembly for a dot line printer, print pins are attached to the tip ends of print hammers alternately displaced toward left and right by a predetermined distance from a vertical center of the print hammer, wherein comb portions of a front yoke at both sides of the plunger are made to be an equal width. With such an arrangement, the print pins are not deformed horizontally due to imbalanced magnetic force applied to the associated print hammer at the time of magnetization of a permanent magnet.

REFERENCES:
patent: 4386563 (1983-06-01), Farb
patent: 4553864 (1985-11-01), Hayashi
patent: 4879947 (1989-11-01), Kurosawa et al.
patent: 4936210 (1990-06-01), Ukai
patent: 5118210 (1992-06-01), Kobayashi et al.
IBM Technical Disclosure Bulletin, vol. 27, No. 2, Jul. 1984 "Print Hammer Mounting Arrangement For A Matrix Printer".

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