Wenderoth, Lind & Ponack
Wire dot print head
 A spring-charged wire dot print head having printing wires is provided with back poles paired up respectively with the cores of electromagnets for cancelling the magnetic flux produced by a permanent magnet, to eliminate the adverse effect of magnetic interference liable to occur in driving the adjacent printing wires. The adjacent pairs of cores and back poles are opposite to each other with respect to the polarity of the magnetic path of the magnetic flux produced by the permanent magnet. 
Oki Electric Industry Co., Ltd.
B B
B41J B41J
inventional inventional
Hiroshi Hirokazu Mitsuru Tatsuya Kiyoshi Minoru
Kikuchi Andou Kishimoto Koyama Ikeda Teshima