Image scanning apparatus and method

Facsimile and static presentation processing – Facsimile – Recording apparatus

Patent

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Details

358283, 358284, 358293, 358296, H04N 122, H04N 140, H04N 110

Patent

active

043331122

ABSTRACT:
This invention relates to an apparatus and method for scanning and duplicating documents with high resolution. The apparatus herein disclosed includes an array of printing nozzles and a photosensor comprising sensor elements the number of which per line is smaller than the full number of desired image resolution points and which are arranged two-dimensionally. Small apertures are disposed optically conjugate with said photosensor in such manner that light from the desirable resolution points may fall on the corresponding individual sensor elements through a focusing lens. Through an optical system comprising another focusing lens and two rotary mirrors, an image of the document is formed on the mask. The image of document on the mask is moved in two orthogonal directions while the two mirrors being rotated sequentially to scan the document and detect image points of desirable resolution. Signals obtained therefrom are used to operate the printing nozzles.

REFERENCES:
patent: 3592963 (1971-07-01), Young
patent: 3775559 (1973-11-01), Vieri
patent: 3984629 (1976-10-01), Gorog
patent: 4149197 (1979-04-01), Kos et al.
patent: 4189754 (1980-02-01), Gamblin
patent: 4203136 (1980-05-01), Welldendorf et al.

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