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:
Dec. 20, 1983
Filed:
May. 26, 1982
Yasumori Nagahara, Yokosuka, JP;
Ricoh Company, Ltd., , JP;
Abstract
A multiple mode copying apparatus including a drive for moving a lens in the direction of a principal light beam, a conversion cam for converting the distance covered by the movement of a lens into a rotational angle, and a mirror moving device for moving mirrors in accordance with the rotational angle. The conversion cam is formed with a first cam surface for deciding the distance to be covered by the movement of the mirrors and a second cam surface for following up the distance covered by the movement of the lens. The second cam surface is profiled such that it is in the form of an arc such that when a cam follower moves past a point of contact of the cam follower for effecting copying without magnification and reduction, the direction movement of the cam member is reversed by starting at the point of contact thereof. By selecting a suitable profile for the second cam surface, it is possible to have the first cam surface profiled to be in the form of a straight line.