Shinko Electric Company, Ltd.

Sigeyuki Kawamura

Hayami Sugiyama

Minoru Yamakuni

Kenichi Kawahara

Hiroshi Matsuda

Kazunori Masukawa

Takashi Kubota

Takasi Kubota

Yosikazu Miyasita

A thermal head includes a metal substrate; an insulating layer formed on the surface of the metal substrate; a plurality of heating elements disposed on the surface of the insulating layer, the heating elements being arranged with a predetermined pitch along a plurality of lines in a main scanning direction, the plurality of lines being spaced apart from each other in a paper-feeding direction perpendicular to the main scanning direction; and a heat radiating element projecting from the surface of the metal substrate to the side where the insulating layer is disposed. Although most of the heat generated by the respective heating elements is transferred to an ink ribbon or print paper, residual partial heat is absorbed by heat radiating means via the insulating layer and radiated into the atmosphere, which suppresses thermal interference among the heating elements.

Thermal head and controller for controlling the same

In the present invention, the recording paper is conveyed by a feed roller to plural recording portions sequentially, and each recording portion successively prints each specific color on the recording paper while applying tension to the paper. The tension applied to the recording paper is switched to a predetermined value each time the recording paper is conveyed to each recording, portion when starting to print.

Color printer and method of feeding paper by tension rollers

Growing community of inventors

Ise, Japan

Sigeyuki Kawamura