Citizen Watch Company, Ltd.

Sigeru Futakami

Sadao Masubuchi

Masafumi Yokoyama

Masaaki Matsunaga

Akira Shiota

Chikara Aizawa

Shinichi Nonaka

Maki Wakita

The present invention uses LEDs as the light source in a optical printer employing a line scanning method in which an image is produced by relative motion of the light to a photosensitive medium. LEDs are arranged on a mounting substrate with LED pairs, each pair being of the same color, disposed symmetrically as to the center point of the line. Similarly, the power supply lead wires for the LEDs are also disposed symmetrically. In mounting the components on the mounting substrate, a light-intercepting material is used for intercepting light from the side faces of the LEDs.

Optical printer apparatus

The present invention employs LEDs and a liquid crystal shutter driven in synchronization with the position of the photosensitive paper, thereby eliminating image distortion even where the head of the optical printer apparatus is subjected to unanticipated load during scanning by the head. A rotary encoder (,) is provided on the rotating shaft of the motor (,) that drives the optical head (,), and the drive timing for the LEDs (,) and the liquid crystal shutter (,) is synchronized with the output of the rotary encoder.

Optical printer

Growing community of inventors

Tokorozawa, Japan

Sigeru Futakami