Image formation device

Details Image formation device Image formation device

Filed on

1986-09-26

Date issued

1988-03-15

Examiner

Evans, Arthur G.

Patent Class

Recorders

SubClass

Printing, dotting, or punching marker

SubSubClass

Ink transfer support or moving means

Other Related Categories

350 67, G01D 1510

Type

Patent

Status

active

Patent number

047316233

Description

ABSTRACT:
An image formation device for forming an electrostatic latent image on a photosensitive body using a semiconductor laser to generate a laser beam, a collimating lens for focusing the laser beam into a parallel beam, a collimating lens unit which is rotatable and arranged to flatten the laser beam from the collimating lens, a polygonal mirror for scanning the laser beam by means of reflecting surfaces, and a first and a second scanning lens for cooperatively scanning the optical path for moving the beam from the polygonal mirror onto the photosensitive body at a constant speed.

REFERENCES:
patent: 4030806 (1977-06-01), Goshima et al.
patent: 4612555 (1986-09-01), Hongou et al.

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