| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent voids at the time of transfer, and also, to satisfactorily transfer images to a rough paper. SOLUTION: In the image forming device constituted of an intermediate transfer unit for primarily transferring a toner image formed on a photoreceptor 110 to an intermediate tranfer belt 360 by a primary transfer roller 320, and then, secondarily transferring the toner image to a recording medium by a secondary transfer roller 380, the circumferential speed of the photoreceptor 110 is made to differ from the circumferential speed of the intermediate transfer belt 360, the looseness apparent density of toner is >=0.35 g/cc, and the shape coefficient SF-1 of the toner is <=150 and the shape coefficient SF-2 is <=140.</p> |
