Image forming method and apparatus using energy beam impingement

Details Image forming method and apparatus using energy beam impingement Image forming method and apparatus using energy beam impingement

1995-03-17

1997-09-09

Lee, Shuk Yin

Electrophotography

Image formation

Simultaneously with charge transfer

347199, 347224, 399297, G03G 1514

Patent

active

056665989

ABSTRACT:
A high-speed image forming method and apparatus is capable of directly controlling a toner by the force of an energy beam. Selected toner particles in a mass of toner adhering to the surface of a transparent drum are irradiated with a laser beam emitted by a laser disposed within the transparent drum and controlled for scanning according to image information. The laser beam separates the selected toner particles from the transparent drum by the force it produces on the particles, and then the separated toner particles are moved to a paper sheet by the force of an electric field produced by a developing electrode. Each toner particle need only be irradiated with the light for a comparatively short period of time, so that an image can be formed at high speed.

REFERENCES:
patent: 4470055 (1984-09-01), Todoh
patent: 4801950 (1989-01-01), Frehling

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