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:
Jan. 18, 1994
Filed:
Dec. 14, 1990
Kenji Hashimoto, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An automatic document feeder (ADF) for use with an electrophotographic copier, digital copier or similar image recorder for selectively feeding ordinary documents in the form of separates sheets and a continuous document in the form of computer form (CF) paper. Sprocket holes formed through the CF paper are sensed to controllably transport and stop the CF paper on the basis of the number of sensed holes. Even when the first print area of the CF paper is set on a platen by hand, the paper can be surely transported and stopped page by page to the last print area. Regarding the last print area, the stop position is determined on the basis of the number of sprocket holes having been counted until the trailing edge thereof has moved away from a sensor. Hence, whatever the deviation of a print area relative to the CF paper may be, all the print areas including the last print area can be accurately set on the platen to reproduce complete images.