US 5,699,088 A · Recording head for a magnetic printer

Abstract

A recording head for a magnetic printer utilizes a so-called magnetography, in which a magnetic latent image formed on a magnetic recording medium is developed and actualized by a magnetic toner and which image is transferred and fixed on a sheet of recording paper to provide a hard copy. The recording head for a magnetic printer includes a first thermal head member, second thermal head member juxtaposed with the first thermal head member with a space therebetween, and a magnetic head member arranged on the first and the second thermal head members. A magnetic gap of the magnetic head member extends immediately above the space between the first and the second thermal head members linearly in the same direction. By this structure, a recording head for a magnetic printer which has simple structure and allows formation of a magnetic latent image having clear boundary between opposite magnetic polarities on a magnetic recording medium, is provided.

Claims30

Dependent claims

A recording head for a magnetic printer, comprising:

a first thermal head;
a second thermal head juxtaposed with said first thermal head with a prescribed linearly extending space therebetween;
and
a magnetic head positioned on said first thermal head and said second thermal head and having a magnetic gap extending, immediately above said space, linearly in a same linearly extending direction as said space.

1 more element

A recording head for a magnetic printer, comprising:

a first substrate having a first main surface and a second, rear main surface;
a first magnetic film formed on said main surface of said first substrate;
a first conductor portion formed on said second main surface of said first substrate;
a second substrate juxtaposed with said first substrate with a space therebetween, and having first and second main surfaces corresponding to said first main surface and said second main surface of said first substrate;
a second magnetic film formed on said first main surface of said second substrate;
a second conductor portion formed on said second main surface of the second substrate;
and
first heating means connected with said first conductor for radiating heat when electric current is applied to said first conductor portion and second heating means connected with said second conductor for radiating heat when electric current is applied to said second conductor portion;
wherein
said first substrate, said first conductor portion and said first heating means constitute a first thermal head,
said second substrate, said second conductor portion and said second heating means constitute a second thermal head, and
said first and second magnetic films constitute a magnetic head with a space therebetween serving as a magnetic gap.

9 more elements

A recording head for a magnetic printer, comprising:

a substrate having a main surface ind a second, rear main surface;
a first magnetic film formed on said first main surface;
a second magnetic film formed on said first main surface juxtaposed with said first magnetic film with a space therebetween;
a first conductor portion formed corresponding to said first magnetic film on said second main surface;
a second conductor portion juxtaposed with said first conductor portion with a space therebetween, corresponding to said second magnetic film on said second main surface;
and
first heating means connected with said first conductor portion for radiating heat when electric current is applied to said first conductor portion and second heating means connected with said second conductor portion for radiating heat when electric current is applied to said second conductor portion;
wherein
said substrate, said first conductor portion and said first heating means constitute a first thermal head,
said substrate, said second conductor portion and said second heating means constitute a second thermal head,
said first and second magnetic films constitute a magnetic head with a space therebetween serving as a magnetic gap, and
the space between said first magnetic film and said second magnetic film is arranged to extend immediately above a space between said first conductor portion and said second conductor portion in the same direction as said space.

9 more elements

Dependencies are inferred from the claim text.

Recording head for a magnetic printer

Life of this patent

Recording head for a magnetic printer

Life of this patent

Abstract

Claims30