Image formation system, image formation method, and image quality improvement method twice heating and pressing a toner image on a recording material

摘要

An image formation system includes an image forming apparatus for forming different color toner images on a recording material having a toner reception layer, a first heater for heating and pressing the toner image on the recording material, and a heater for heating and pressing the toner image on the recording material having been heated and pressed by the first heater. The first heater is operable so as to provide a granularity R of the toner image satisfying 0.5≦̸R≦̸4.0 and a glossiness G of the toner image satisfying 5≦̸G≦̸40, the second heater being operable so as to provide a granularity R of the toner image that is not more than 4.0 and a glossiness G of the toner image that is not less than 60.