Toner replenishing and developer replacing device for a developi

Details Toner replenishing and developer replacing device for a developi Toner replenishing and developer replacing device for a developi

1996-10-11

1999-06-22

Beatty, Robert

Electrophotography

Image formation

Development

399259, G03G 1508

Patent

active

059151552

ABSTRACT:
In an image forming apparatus, a developing unit for forming an image by use of a two-ingredient type developer, i.e., toner and carrier mixture includes a container for replenishing fresh toner and for replacing carrier deteriorated due to aging or a developer including such carrier. By rotating the container in one direction, both fresh toner and a two-ingredient developer can be supplied to the developing unit. Initially when a container is mounted, the developer is fed in an amount less than an amount for image formation to start and only when a second container is mounted and rotated is the developer amount sufficient for image formation to start.

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patent: 5598254 (1997-01-01), Ikesue et al.

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