Image forming apparatus for obtaining image upon scanning with l

Details Image forming apparatus for obtaining image upon scanning with l Image forming apparatus for obtaining image upon scanning with l

1991-03-14

1993-02-16

Reinhart, Mark J.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

355200, G01D 1516, H04N 121

Patent

active

051874954

ABSTRACT:
According to this invention, optical the path lengths from two semiconductor laser oscillators to a photosensitive body are different from each other. Oscillation is switched between the two semiconductor laser oscillators to change the beam shape of a laser beam on the photosensitive body. Since the beam shape of the laser beam can be controlled at accurate timings, a good image can be obtained, and a thin line and a high quality gradation image can be reproduced on a single image. An image having no gradation levels and an image having gradation levels can be simultaneously formed both with high quality.

REFERENCES:
patent: 4885596 (1989-12-01), Egawa et al.

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