Image forming apparatus with movable mirrors along two optical p

Details Image forming apparatus with movable mirrors along two optical p Image forming apparatus with movable mirrors along two optical p

1995-11-28

1996-12-17

Lee, Shuk Yin

Photocopying

Contact printing

Light boxes

355232, G03G 1501, G03G 1504

Patent

active

055859127

ABSTRACT:
An image forming apparatus includes a plurality of image forming units, each unit developing a latent image formed on a respective photosensitive drum with a respective color toner to form an image on a sheet of paper. The image forming apparatus includes an exposing optical device for projecting light on the photosensitive drums, a first movable mirror for reflecting the light along a first optical path and a second movable mirror for reflecting the light reflected from the first movable mirror to a selected photosensitive drum along a second optical path. The first and second movable mirrors move so that the optical path lengths are constant irrespective of the position of the selected photosensitive drum. Latent images, each having a uniform size, are formed on the photosensitive drums.

REFERENCES:
patent: 4063724 (1977-12-01), Suda
patent: 4615612 (1986-10-01), Ohno et al.
patent: 5014095 (1991-05-01), Yamada
patent: 5502557 (1996-03-01), Choi et al.
patent: 5517296 (1996-05-01), Choi et al.

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