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. 11, 1990
Filed:
Oct. 11, 1988
Toshio Sakai, Nagoya, JP;
Osamu Kawano, Nagoya, JP;
Kazunori Tanabe, Nagoya, JP;
Tomoaki Hattori, Nagoya, JP;
Abstract
In forming a color picture image on a photosensitive recording medium by exposing through a masking master plate, the plate is conveyed by a conveyor belt into an exposure device where the plate must be registered in a specified position to avoid a color shift in the image formed on the photosensitive recording medium. A positional error or deviation of the plate is detected by reading out a location mark on the plate by a plurality of sensors. According to the outputs from the sensors, the conveyor belt is moved in a longitudinal path by one or two motors to correct a longitudinal deviation, and two longitudinally spaced portions of a belt support unit are moved, in a direction perpendicular to the longitudinal path, independently and respectively by other two motors to correct a transverse deviation and/or a skew.