| 摘要 |
PROBLEM TO BE SOLVED: To control an image gloss, which occurs due to differences in fixingmember durability and recording-medium material, by variably setting the heating temperature of a heating/fixing device based on a reference image read by an image reading means. SOLUTION: The final temperatures of a fixing roller 51 and a pressure roller 52 are set to, for example, 170 deg.C. The fixing roller 51 and the pressure roller 52 are heated by heaters 56 and 57, respectively, and when they reach 150 deg.C, a so-called black image (reference image) in which images outputted at Y, M, C, and K solid densities are superimposed is outputted. In the image forming device for obtaining a digital color image, the black image is outputted by comparing it with a pattern generator image incorporated in it. In the same manner, also when the fixing roller 51 and pressure roller 52 are heated by the heaters 56 and 57 and reach 160 deg.C and 170 deg.C, a reference image is outputted. Thus, an optimum gloss is obtained from the data on the density of the reference image outputted at the corresponding temperature. |
