| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device capable of removing contamination on a pressure member, in which paper powder ratio is larger than toner ratio, by using a recording material.SOLUTION: An image forming device has a cleaning mode in which contamination of the pressure member is removed by rotating the fixation rotor for a prescribed period of time in a state of Th≤Tf3, Tf2≤Tp≤Tf3, and besides conveying a recording material S while clamping it with a nip part N after rotating the fixation rotor for the prescribed period of time where Th and Tp represent respectively a surface temperature of a fixation rotor 21 and a surface temperature of a pressure member 22, which are obtained on the basis of a detection temperature of a temperature detecting member 26 for detecting a temperature of a heating member 23, and Tf2 represents a deformation end point of a toner of an unfixed toner image T, and Tf3 represents a flowage start point thereof, both being measured by using a flow tester. |
