Light beam scanning device and electronic photographic recording

Details Light beam scanning device and electronic photographic recording Light beam scanning device and electronic photographic recording

1987-06-29

1989-02-28

Prescott, A. C.

Photocopying

Including fiber optics

355 3R, 346 76L, G03G 1500

Patent

active

048090425

ABSTRACT:
A laser beam printer, in which a laser beam outputted by a laser diode pulse-modulated and controlled is deviated to be swept by means of a polygon mirror and folded by a reflecting mirror, after having passed through an F.theta. lens including two single lenses, so that it traverses the space between the two single lenses and reaches a light sensitive drum in order to expose it thereto.

REFERENCES:
patent: 4129376 (1978-12-01), Yotsukura
patent: 4358197 (1982-11-01), Kukucka et al.
patent: 4447112 (1984-05-01), Matsuoka et al.
patent: 4674825 (1987-06-01), Takeoka et al.

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