To provide a multi-color impression printing device which can precisely perform a printing registration process, even when meshy cells are formed in the surface of each plate cylinder, and a multi-color impression printing method and a printing register mark.
Each printing means 10a, 10b, 10c and 10d puts a register mark 40a, 40b, 40c and 40d to a printing substrate W. Each register mark 40a, 40b, 40c and 40d consists of a first portion and a second portion which are represented by symmetric point and have their respective edges extending in a feed direction and a width direction. A registration means 30 performs a printing registration process so that the positional relationship between intersections 43a, 43b, 43c and 43d of a median line of the feed direction edges of the first and the second portion and a median line of the width direction edges of the first and the second portion, can be kept uniform.
KIMURA NAONOBU
KANEDA ATSUSHI
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma
Next Patent: MULTI-COLOR PRINTING DEVICE, MULTI-COLOR PRINTING METHOD AND PRINT REGISTER MARK