The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1981
Filed:
Jul. 19, 1979
Masumi Ikesue, Tokyo, JP;
Takashi Yano, Tokyo, JP;
Susumu Tatsumi, Tokyo, JP;
Hiroyuki Idenawa, Tokyo, JP;
Isao Nakamura, Tokyo, JP;
Tatsuo Tani, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
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).