Wiring of actuators in a wire-dot print head

Details Wiring of actuators in a wire-dot print head Wiring of actuators in a wire-dot print head

1989-03-29

1991-12-10

Wiecking, David A.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 230

Patent

active

050712691

ABSTRACT:
In a wire-dot print head which comprises print elements arranged in a ring, each having an electromagnet formed of a core and a coil, and in which the electromagnets are divided into a plurality of blocks so that each block has a plurality of electromagnets, and a common current conduction control element is provided for each block and used to control current through the coils of the electromagnets in the block, the electromagnets of each of at least some of the blocks are disposed so as not to be physically adjacent to each other. Because of the above arrangement, currents through the coils due to magnetic interference between the adjacent electromagnets is reduced and power consumption is reduced.

REFERENCES:
patent: 4286517 (1981-09-01), Katagiri et al.
patent: 4473311 (1984-09-01), Sakaida

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