Printing – Selective or progressive – Bed and platen machines
Patent
1985-11-12
1988-07-19
Wiecking, David A.
Printing
Selective or progressive
Bed and platen machines
400124, 400248, 4006451, B41J 3504
Patent
active
047577606
ABSTRACT:
A printing head apparatus for a dot printer including a frame and at least one printing wire unit which is secured to the frame. The printing wire unit has an electromagnetic actuator and a printing spring with one stationary end and a printing wire attached to the other end thereof. The printing spring carries an armature at an appropriate central portion thereof facing the core of the electromagnetic actuator. The printing spring is flat and tapered toward the distal end, and a bent portion is provided on the flat portion for securing the printing wire, while an indented portion is provided on the base portion of the printing spring. A wire mask enables the ink ribbon to be smoothly fed.
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Koizumi Michio
Kunita Masao
Nihara Shohachi
Ohsawa Seiichi
Citizen Watch Co. Ltd.
Wiecking David A.
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