FIXING METHOD AND FIXING DEVICE

摘要

To provide a fixing method and a fixing device with each of which an image which has high gloss that is uniform irrespective of a toner mounting amount on a recording medium can be obtained at a relatively high recording medium conveying speed. A fixing method and a fixing device in which an unfixed toner image formed on a recording medium is heat-pressure-fixed by using a fixing unit, are characterized in that : the unfixed toner image is fixed when the recording medium passes through at least 2 fixing units arranged in series in a conveying direction of the recording medium; a toner for forming the unfixed toner image is a toner containing a release agent; and the following formulas (1) and (2) are satisfied when a maximum temperature on the recording medium when the recording medium passes through a first fixing unit is denoted by T1, a maximum temperature on the recording medium when the recording medium passes through a second fixing unit is denoted by T2, a minimum temperature on the recording medium during a time period commencing on ejection of the recording medium from the first fixing unit and ending on entry of the recording medium into the second fixing unit is denoted by t, a flow tester softening temperature of the toner is denoted by Ts, and a flow starting temperature of the toner is denoted by Tfb. T 1 > T f b T 2 > t > T s