Photocopying – Including fiber optics
Patent
1985-12-02
1988-01-19
Prescott, A. C.
Photocopying
Including fiber optics
355 3DD, 355 14D, G03G 1500, G03G 1508
Patent
active
047207302
ABSTRACT:
In the present invention, there is disclosed an image forming apparatus in which an electrostatic latent image formed on a photosensitive member is developed and subsequently transferred to a paper. The apparatus comprises a plurality of developing devices selectively operable to develop the electrostatic latent image, an agitator provided in each of the developing devices for agitating developer contained therein, and a device responsive to a power switch for driving each of the agitators for a predetermined period of time. One of the developing devices is driven to develop the electrostatic latent image during an image forming cycle. Another device is responsive to termination of the image forming cycle for at least driving the agitators of the developing devices not used in the image forming cycle for a predetermined period of time.
REFERENCES:
patent: 3926517 (1975-12-01), Nagahara
patent: 3960445 (1976-06-01), Drawe
patent: 4222660 (1980-09-01), Furuichi et al.
patent: 4264185 (1981-04-01), Ohta
patent: 4386769 (1983-06-01), Ito et al.
patent: 4416533 (1983-11-01), Tokunaga et al.
patent: 4447145 (1984-05-01), Snelling et al.
patent: 4451134 (1984-05-01), Fukuchi et al.
patent: 4536080 (1985-08-01), Hauser et al.
Minolta Camera Kabushiki Kaisha
Prescott A. C.
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