Patent Number: 6,298,212

Title: Apparatus providing improved image transfer to an intermediate transfer belt

Abstract: An image forming apparatus effectively prevents scattering of a toner image transferred to an intermediate transfer belt. The image forming apparatus has an image carrier 1 on which a toner image T formed according to image data is held; an intermediate transfer belt 3 disposed facing the image carrier 1 and supported on so as to move circularly about plural rollers 2 with tension applied; a first bias transfer unit 4 for sequentially transferring a toner image T on image carrier 1 to intermediate transfer belt 3; and a second bias transfer unit 6 for batch transferring the toner image T on intermediate transfer belt 3 to a recording medium 5; and a potential holding unit 8 for holding the surface potential of the first contact member 7 at or above the charge potential of the back of intermediate transfer belt 3, and disposed to the contact member 7 first contacting the intermediate transfer belt 3 after it passes the first bias transfer unit 4.

Inventors: Kono; Noriyoshi (Ebina, JP), Enomoto; Yoshihiro (Ebina, JP), Hayashi; Yukio (Ebina, JP), Takahashi; Nobukazu (Ebina, JP)

Assignee: Fuji Xerox Co., Ltd.

International Classification: G03G 15/16 (20060101); G03G 015/01 ()

Expiration Date: 10/02/2018