Patent ID: 6016752
Filing Date: 2000-01-25
Classification: B41B,G03F,H04N,Y10S

Abstract:
A method for recording a rectangular image along helical tracks on a rectangular plate, while the plate is attached to the cylindrical surface of a rotating drum in an imagesetter, one edge of the plate being a reference edge, so that an edge of the image essentially parallels the reference edge, the method comprising(a) providing on the surface of the drum first and second fixed protruding members;(b) determining a correction angle;(c) providing on the plate first and second contact edges, their positions relative to the reference edge being determined according to said correction angle and at least the first contact edge not forming part of the reference edge;(d) attaching the plate to the surface of the drum so that said first contact edge is in contact with said first protruding member and said second contact edge is in contact with said second protruding member, no edge of the plate then being parallel to the axis of the drum.