| 摘要 |
PURPOSE:To reduce the offsetting amount of toner by sufficiently heating/fixing the toner transferred on an image carrier, then, cooling the toner up to some temperature region, and peeling the toner from a metallic belt. CONSTITUTION:While a recording paper 11 is held/carried between an endless metallic belt 8 and a pressure roller 10, unfixed toner 12 on the recording paper 11, is heated/melted by a PTC heater 1, via the endless metallic belt 8, infiltrated into the recording paper 11, and immediately, cooled on the region of a cooler 5. At this time, first, a surface temperature on a part where the endless metallic belt 8 is pressed to contact with the recording paper 11, is elevated up to the vicinity of the melting point of the toner, and then, cooled so that a temperature is made higher than the glass-transition point of the toner and lower than its softening point, at a place where the recording paper 11 is peeled from the endless metallic belt 8. Therefore, when the recording paper 11 is released in the vicinity of the top end of the cooler 5, the viscosity of the toner is made high, and an offset to the side of the endless metallic belt 8 can be prevented. |
