Hitachi, Ltd.

Akira Abe

Kikuo Hatazawa

Mitsuo Ohno

Seiki Harada

Atsushi Saiki

Kikuji Sato

Yuichiro Oya

Masami Tomono

Takeshi Takagi

Genichi Kamoshita

A control system for controlling a laser beam printer in which a light-sensitive drum surface is scanned on a line base with a laser beam modulated in accordance with data to be printed. The width of scanning lines is broadened so that the adjacent scanning lines are partially superposed each other at those portions where both of the adjacent lines are to be irradiated with the laser light beam, while at those portions where at least one of the adjacent lines are not to be irradiated, the scanning line is reduced in width.

Printer controller for laser beam printer

A laser beam printer in which latent images are produced on a light-sensitive drum through line scanning with a laser beam modulated with print information to be printed. The laser beam is modulated with the information to be printed in such a manner that the light sensitive drum is irradiated with the laser beam except for those portions which are to be printed. The line scanning is effected with the laser beam modulated in accordance with the print information in a non-superposed manner on one hand and on the other hand with the laser beam which is modulated by information synthesized from the printing information for every two adjacent line scanning so that these two adjacent line scannings are partially covered by the line scanning based on the synthesized information.

Laser beam printer

Disclosed is a discrete semiconductor device comprising a Si body having an emitter region, a base region and a collector region, an SiO.sub.2 layer disposed on the surface of the body, a polyimide resin having a thickness of 5 .mu. disposed on the SiO.sub.2 layer, electrodes penetrating through the SiO.sub.2 layer and the polyimide resin thereby contacting the emitter region and the base region, respectively and extending on the surface of the polyimide resin, whereby it becomes easy to bond a wire connected to an external electrode with the electrodes.

Discrete semiconductor device having polymer resin as insulator and

Growing community of inventors

Hadano, Japan

Akira Abe