Patent ID: 6782824
Filing Date: 2004-08-31
Classification: B41F,B41P,G03G

Abstract:
A printing unit for a rotary printing machine with reversible image setting and digital changeover by means of thermal transfer, said printing unit comprisingan impression cylinder, a reversibly imagable cylinder having a hydrophilic clastomeric surface on which an image can be set and erased, said reversibly imageable cylinder interacting with said impression cylinder in order to print on a substrate passing therebetween, said impression cylinder having a surface which is harder and has a higher elasticity than said hydrophilic elastomeric surface, a thermal transfer image setting unit which can be set against said reversibly imagable cylinder, an erasing and cleaning component which can be set against said reversibly imagable cylinder, and at least one inking unit which can be set against said reversibly imagable cylinder.