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:
Mar. 01, 1988
Filed:
Jun. 18, 1986
Applicant:
Inventors:
Yoshihiro Nakashima, Tokyo, JP;
Shigeru Muramatsu, Yokohama, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355-7 ; 355 / ;
Abstract
A copier having eraser means for erasing needless ones of latent images which are electrostatically formed on a photoconductive element. A non-erase area is set up in consideration of a paper size, document size, trimming size and magnification. The non-erase size corresponds to a particular area where a paper size, a document size (with a magnification changed) and a trimming size (with a magnification changed) overlap each other. The non-erase area is displayed to facilitate confirmation by an operator. Latent images outside of the non-erase area are erased by the eraser means.