Image forming device and image forming device control method

Details Image forming device and image forming device control method Image forming device and image forming device control method

2007-05-02

2009-08-04

Tran, Hoan H (Department: 2852)

Electrophotography

Image formation

Transfer

C399S308000

Reexamination Certificate

active

07570908

ABSTRACT:
A technique capable of preventing deterioration of image quality resulting from a band-shaped toner image created on a photosensitive surface in order to prevent so-called carrier attraction is provided.An image forming device in which, on a photosensitive surface of a photoreceptor, a first region electrified by a charger is set to be positioned at an inner side of a second region to which a predetermined potential difference is applied by a developing device in order to develop an electrostatic latent image formed in the first region with two-component developer, the device including: an intermediate transfer body that is arranged to be capable of abutting and being separated from the photosensitive surface, and has an image developed by the two-component developer transferred thereon from the photosensitive surface at a predetermined transfer position; and an abutting and separation controlling unit that separates the intermediate transfer body from the photoreceptor when a region of the second region excluding the first region on the photosensitive surface passes the predetermined transfer position.

REFERENCES:
patent: 6314264 (2001-11-01), Iida et al.
patent: 6697581 (2004-02-01), Ohtani et al.
patent: 6985681 (2006-01-01), Taguchi et al.
patent: 2000-075670 (2000-03-01), None

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