A method for repositioning a mark on a belt after an image on paper registration process, which includes printing a test pattern, measuring at least one test pattern parameter, detecting a mark on a belt and detecting at least one imaging error associated therewith, using the at least one test pattern...http://www.google.es/patents/US7039348?utm_source=gb-gplus-sharePatente US7039348 - Method for maintaining image on image and image on paper registration
Method for maintaining image on image and image on paper registration
