US Patent 7751072 Automated modification of a marking engine in a printing system

A method of printing includes processing a print job stream to identify one or more images to be printed on a first substrate. The first substrate has a substrate attribute, such as paper weight or surface roughness, which is different from that of a second substrate. A marking engine is selected to print the identified images on the selected first substrate. An operating parameter of the marking engine is modified from a set point for the second substrate to a modified set point for the first substrate, to accommodate the substrate attribute of the selected first substrate. The identified images are sent to the selected marking engine to be printed.