Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1987-06-05
1988-12-20
Groody, James J.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358285, H04N 110, H04N 104
Patent
active
047928581
ABSTRACT:
An optical scanning system for (i) scanning images from film transparencies or reflective copy, and for (ii) reproducing images onto film or photosensitive paper to prepare films, printing plates and the like. A paten assembly having two platens, each platen having an image area, is rotatable between positions to selectively locate one of the platens in an orientation for scanning an image area of such platen. A scanner traces scan lines across the image area in a first direction as a gantry assembly transports the scanner over the image area in a second direction. When scanning an image (as opposed to scanning to reproduce an image), photodetectors detect light either transmitted through a film containing an image or reflected from a reflective copy containing an image. The photodetector is sampled by a system computer. When scanning to reproduce an image, a film is loaded onto a platen and the scanner scans in raster fashion over the film. A light source on the scanner is modulated during the scanning to reproduce an image onto the film. To load the film the scanner is automatically moved out of the platen's path of rotation, a sheet of film is automatically raised to the platen which by vacuum force holds the film to the platen, and the platen is rotated to bring the film into a position to be scanned.
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Groody James J.
Powers Chemco, Inc.
Svihla Randall S.
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