| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress density unevenness in transfer due to eccentricity of a transfer member or a recording material holding body. <P>SOLUTION: An image forming device comprises: a photoreceptor drum 11 which rotates while holding an image on its peripheral surface; a transfer drum 21 which has an outer peripheral surface and an inner peripheral surface as well as a cylindrical shape, of which both ends in the axial direction are opened, and rotates while contacting with the peripheral surface of the photoreceptor drum 11 to transfer the image on the photoreceptor drum 11 to a sheet S held on the outer peripheral surface; a transfer drum driving roll 83 which contacts with the inner peripheral surface of the transfer drum 21 at the upstream side in the rotating direction of the transfer drum 21 from a transfer nip part, in which the transfer drum 21 and the photoreceptor drum 11 are contacted, and rotationally drives the transfer drum 21; and a transfer drum supporting roll 31 which rotatably comes into contact with the outer peripheral surface of the transfer drum 21 at the upstream side in the rotating direction of the transfer drum 21 from a driving nip part in which the transfer drum 21 and the transfer drum driving roll 83 are contacted. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
