Image forming apparatus provided with a laser-beam-writing means

Communications: directive radio wave systems and devices (e.g. – Determining distance – With pulse modulation

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B41J 2435

Patent

active

054206170

ABSTRACT:
An apparatus for forming a latent image on a photoreceptor with a laser beam and for developing the latent image with a developer. A duty ratio of the laser beam is changed in accordance with the laps of using time of the developer.

REFERENCES:
patent: 4914455 (1990-04-01), Hayes
patent: 5025272 (1991-06-01), Haneda et al.
patent: 5115259 (1992-05-01), Itoh
patent: 5189441 (1993-02-01), Fukui et al.

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