Facsimile and static presentation processing – Facsimile – Picture signal generator
Patent
1994-04-07
1996-04-09
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Picture signal generator
358471, 358474, 358482, 250216, H04N 1024
Patent
active
055066941
ABSTRACT:
Upon writing, a portion of light emitted from light-emitting devices of a light-emitting and light-receiving head 2 is deflected by a half mirror and is then allowed to pass through a first lens array to achieve optical writing on a rotating or moving photoreceptor. Upon reading, on the other hand, light reflected by an original is allowed to pass through a second lens array and then to enter the half mirror. The light is then allowed to pass through the half mirror to the light-emitting and light-receiving head 2 and is hence read by reading devices of the light-emitting and light-receiving head.
It is therefore possible to perform writing and reading while the light-emitting and light-receiving head and the optical system remain stationary. No mechanism is therefore needed for moving the light-emitting and light-receiving head, thereby making it possible to provide a scanner-equipped electrophotographic printing machine having small dimensions and high resolution.
REFERENCES:
patent: 3914546 (1975-10-01), Hamaker et al.
patent: 4424524 (1984-01-01), Daniele
patent: 5327263 (1994-07-01), Katagiri et al.
Coles Sr. Edward L.
Lee Thomas D.
OKI Electric Industry Co., Ltd.
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