Photocopying – Contact printing – Light boxes
Patent
1989-06-05
1992-06-09
Braun, Fred L.
Photocopying
Contact printing
Light boxes
355200, G03G 2100
Patent
active
051211629
ABSTRACT:
A control system for a copier having at least some of the following functions: color printing function; a combining function; a shifting function; a trimming function; a continuous copying function; a magnification changing function. When using a trim function the shift function or the combine function which involves data setting function, the first data setting and the second data setting are performed at the same time to enhance operability of the copier. In the combine function, which is performed after a copying operation, the trim function, the shift function or the like is restored. The center of a magnification-changed image is aligned with that of a document image in terms of coordinates. Such an image is shifted by a particular amount specified (absolute value). When a 1 magnification condition, an image is shifted by an amount selected if the size of a document is different. When an image is to be shifted in such a direction that a paper precedes the image, the image may be shifted beyond a limit which is mechanically improved by a drum and register rollers. A single document may be reproduced a plurality of times on a single paper whose size is double the size of the document, or two documents may be reproduced side by side on a single paper which is greater in size than the documents, or a plurality of documents may be reproduced on a single paper.
REFERENCES:
patent: 4657380 (1987-04-01), Hamano et al.
patent: 4659207 (1987-04-01), Maekawa
patent: 4688930 (1987-08-01), Ohno
patent: 4702589 (1987-10-01), Ito
patent: 4707126 (1987-11-01), Ohshima et al.
patent: 4728985 (1988-03-01), Nakashima et al.
Braun Fred L.
Ricoh & Company, Ltd.
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