Toshiba Tec Kabushiki Kaisha

Tokyo Electric Co.

Masayuki Iinuma

Takahiro Kawaguchi

Yasunobu Terao

Kuniaki Ochiai

Keishi Tsuchiya

Takashi Norigoe

Tetsuro Ichitani

Takeshi Okui

The present invention is a wire dot printer head wherein a spacer is inserted between a yoke block and a head holder. The yoke block has yokes opposed to plural armatures, coils wound respectively round plural cores whose one ends are opposed to the armatures, and fulcrum portions which hold the armatures so that the armatures can rise and fall with respect to end faces of the cores. The spacer is adapted to move under the action of an external force, thereby changing the spacing between the yoke block and the head holder.

Wire dot printer head and wire dot printer

A dot printer head in which a plurality of needles are so arrayed that tips thereof are aligned linearly and are driven by electromagnets disposed in an annular arrangement. In this structure, the needles are guided by means of an intermediate guide plate and a tip guide plate in such a manner that the linear alignment of the needle tips is maintained regardless of any inclination of the needles, whereby the length of each needle is shortened and the amount of flexure thereof is reduced to enable fast printing as well as to enhance the durability.

Dot printer head

Growing community of inventors

Shizuoka, Japan

Masayuki Iinuma