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:
Sep. 25, 1990
Filed:
Oct. 26, 1989
Iwatsu Electric Co., Ltd., Tokyo, JP;
Abstract
An electrophotographic plate-making machine including a light source and a movable copy holder forming a scanning exposure system for focusing a light at a focus region. A first electric motor is connected to the copy holder, and a sensitive paper is conveyed by a plurality of conveying rollers. Two of the conveying rollers are arranged at the focus region in series with the remaining conveying rollers. A second electric motor is connected to the conveying rollers and a third electric motor is connected to the focus region rollers. Accordingly, the first, second and third electric drive motors, respectively, can move the copy holder, the conveying rollers and the focus region rollers independently of each other, so that a first scanning exposure can be carried out on one portion of a sensitive paper and a second scanning exposure can be carried out on the remaining portion of the sensitive paper.