| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an image forming apparatus with which the occurrence of nonconformity such as the dust on a character and a line is eliminated by stably obtaining the transfer ratio of≥90%, the image of a high image quality is stably obtained by eliminating the occurrence of the inside void of the character and the lives of a photoreceptor and developer are maintained over a long period of time at the time of using a transfer means using a roller, which is easily used by remarkably reducing replacement frequency by extremely elongating the lives of primary and secondary transfer rollers and whose cost is reduced. <P>SOLUTION: In the image forming apparatus possessing the photoreceptor and a primary transfer means to transfer a toner image on the photoreceptor to an endless belt-shaped intermediate transfer body, the relation of force Ft with which the primary transfer means is pressed to the photoreceptor and tension Fb with which the endless belt-shaped intermediate transfer body is laid from the inside is set as 44.1Ft-147≤Fb≤44.1Ft+98, wherein, the units of Ft and Fb are N. <P>COPYRIGHT: (C)2003,JPO</p> |
