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:
Nov. 28, 1989
Filed:
Sep. 02, 1988
Brian J Joseph, Rochester, NY (US);
Leo G Procter, Churchville, NY (US);
Carl W Roy, Spencerport, NY (US);
Eastman Kodak Co., Rochester, NY (US);
Abstract
A reproduction apparatus includes a mechanism for transporting a web carrying electrostatically held toner images through an endless path. The web includes a plurality of closely spaced perforations along an edge. A transfer device includes a drum for presenting a receiving surface to the web to receive a plurality of images in registery, for example, color separation images that will make up a multicolor image on the receiving surface. The transfer drum is driven through a gear train by a sprocket which engages the perforations. The sprocket may also drive the web. To assure the most accurate registry despite inaccuracies in the gear train or perforation location, the pitch of the images on the web divided by the circumference of the sprocket is an integer, preferably 1 and preferably, the circumference of the sprocket divided by the circumference of each of the gears in the gear train is an integer.