Image forming device with leveling unit having a width equal to

Details Image forming device with leveling unit having a width equal to Image forming device with leveling unit having a width equal to

1997-05-13

1999-03-02

Grimley, Arthur T.

Electrophotography

Image formation

Combined or plural functions by single component

399 98, 399343, G03G 2100, G03G 1522, G03G 1508

Patent

active

058783121

ABSTRACT:
An image forming device includes: a photosensitive drum that rotates in a rotational direction; a scanner unit that forms an electrostatic latent image on the photosensitive body; a developing unit that has an operating condition for developing the electrostatic latent image using toner; a transfer unit that transfers the toner image from the photosensitive body to the recording body; a cleaning roller disposed downstream from the transfer unit with respect to the rotational direction at a predetermined leveling position adjacent to the photosensitive body and having an adsorption mode, wherein the cleaning roller uses the potential difference between itself and the photosensitive drum to adsorb residual toner from the photosensitive drum, and a release mode, wherein the cleaning roller uses the potential difference between itself and the photosensitive drum to release residual toner back onto the photosensitive drum; and a controller for switching the cleaning roller into its adsorption mode when a lead edge of an image forming portion of the photosensitive body reaches the leveling position.

REFERENCES:
patent: 5321471 (1994-06-01), Ito et al.
patent: 5606408 (1997-02-01), Yano et al.
patent: 5740494 (1998-04-01), Shoji et al.

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