Electrophotographic image forming apparatus with controlled mixi

Details Electrophotographic image forming apparatus with controlled mixi Electrophotographic image forming apparatus with controlled mixi

1993-05-26

1996-06-04

Grimley, Arthur T.

Photocopying

Contact printing

Light boxes

355208, G03G 2100

Patent

active

055238327

ABSTRACT:
An image forming apparatus having a developing device which accommodates a developer for developing an electrostatic latent image formed on the surface of a latent image carrier, a developing member provided in said developing device for supplying the developer to the electrostatic latent image formed on the surface of the latent image carrier and a mixing member provided in the developing device for mixing the developer accommodated within the developing device. In the above image forming apparatus, the operating time of the mixing member is determined prior to the start of operation of the developing member based on at least one value of a toner density at the end of developing, the developer standing idle time, and the total number of developing cycles with the same developer.

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patent: 5227847 (1993-07-01), Motohashi et al.
patent: 5285242 (1994-02-01), Kotani

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