Developing apparatus for applying different color toners

Details Developing apparatus for applying different color toners Developing apparatus for applying different color toners

1987-09-25

1989-03-28

Grimley, Arthur T.

Photocopying

Including fiber optics

355300, 430 45, G03G 1500

Patent

active

048168696

ABSTRACT:
In a developing system, a first latent image is formed on a photoconductive drum which is rotated in a direction and is developed by a black toner fed from a first developer. A second latent image is also formed on a rotated photoconductive drum and is also developed by a chromatic toner fed from a second developer. The first and second developers are arranged around the rotated photoconductive drum and are rotated in a direction opposite to the rotated direction of the photoconductive drum. The first developer is rotated at a predetermined peripheral velocity higher than that of the drum and the second developer is rotated at a predetermined peripheral velocity equal to that of the drum.

REFERENCES:
patent: 4398817 (1983-08-01), Nishimura et al.
patent: 4416533 (1983-11-01), Tokunaga et al.
patent: 4599285 (1986-07-01), Haneda et al.
patent: 4611901 (1986-09-01), Kohyama et al.

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