fusing member roller 10 by the heating rollers 1 h 2 h during their contact time since the heating rollers 1 2 are made of thermally conductive materials the heat transfer rate to the fuser member roller 10 is quite fast as one media type is followed by a different media type the machine control unit 210 is informed of the different types and it loads the corresponding fuser setup conditions from the media catalog 212 consequently the fuser nip 50 as well as fuser member temperature driven by the nipwidth 40 is adjusted to the correct value during the inter frame between two sheets both controllers 220 and 230 change the respective nips 40 and 50 dynamically in any well known manner during the inter frame between two sheets as discussed in more detail below each nip control may include a cam and a stepper motor for a fixed displacement nip a set of air regulated cylinders for constant load nip a combination of both or any combination of these and other electro mechanical mechanisms well known in the art since the temperature of the fusing roller as driven by the heating rollers nip and the nipwidth between the fusing and pressure members.