Developing device having an improved agitation and conveyance de

Details Developing device having an improved agitation and conveyance de Developing device having an improved agitation and conveyance de

1994-12-09

1996-04-23

Royer, William J.

Photocopying

Contact printing

Light boxes

118653, 118657, 355246, 355251, G03G 1506

Patent

active

055108822

ABSTRACT:
A latent electrostatic image developing device using a developer including a toner and carrier particles has a development housing, in which an upstream agitating/conveying device, a midstream agitating/conveying device, and a downstream agitating/conveying device are disposed. The upstream agitating/conveying device conveys the developer from the central portion in the widthwise direction toward the opposite end portions in the widthwise direction while agitating it, the midstream agitating/conveying device conveys the developer from the opposite end portions in the widthwise direction toward the central portion in the widthwise direction while agitating it, and the downstream agitating/conveying device conveys the developer from the central portion in the widthwise direction toward the opposite end portions in the widthwise direction while agitating it.

REFERENCES:
patent: 4724457 (1988-02-01), Abreu et al.
patent: 4864349 (1989-09-01), Ito
patent: 5122834 (1992-06-01), Okamoto et al.
patent: 5204721 (1993-04-01), Sharpe

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