Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent
1979-07-19
1981-07-07
Braun, Fred L.
Photocopying
Projection printing and copying cameras
Combined with or convertible to a contact printer
355 3R, 355 56, 355 57, G03G 1500, G03B 2734, G03B 2740
Patent
active
042771633
ABSTRACT:
The vertical and horizontal lengths of an original document (28) are automatically sensed and compared with the vertical and horizontal lengths of a copy sheet (38) and the reduction ratio of a variable magnification optical system (33) is automatically adjusted in accordance therewith so that the maximum length of the image of the document (28) is equal to the corresponding vertical or horizontal length of the copy sheet (38). The image may be selectively parallel to the vertical length or the horizontal length of the copy sheet (38) regardless of whether the image is parallel to the vertical or horizontal length of the document (28). In one form (21) of the invention the document (28) is placed on a platen (27) so that the image is parallel to the vertical length of the platen (27) regardless of whether the image is parallel to the vertical or horizontal length of the document (28). In another form (71) of the invention, the document (28) is placed on the platen (74) so that the vertical length of the document (28) is parallel to the vertical length of the platen (74) regardless of whether the image is parallel to the vertical or horizontal length of the document (28). In the latter form (71) a lever (76) or the like is manually changed over to indicate whether the image is parallel to the vertical or horizontal length of the document (28) and the optical axis of the light image is rotated to one of two positions angularly spaced 90.degree. from each other in accordance with the position of the lever (76).
REFERENCES:
patent: 3330190 (1967-07-01), Taillie
patent: 3398669 (1968-08-01), Hicks
patent: 3512861 (1970-05-01), Schackert
patent: 3653761 (1972-04-01), Hicks
patent: 3689143 (1972-09-01), Case et al.
patent: 4046467 (1977-09-01), Laskowski
patent: 4116562 (1978-09-01), Libby et al.
patent: 4129373 (1978-12-01), Ogura et al.
Idenawa Hiroyuki
Ikesue Masumi
Nakamura Isao
Tani Tatsuo
Tatsumi Susumu
Alexander David G.
Braun Fred L.
Ricoh & Company, Ltd.
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