Method of forming superimposed color images

Details Method of forming superimposed color images Method of forming superimposed color images

1985-01-28

1986-12-16

Goodrow, John L.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

To produce color reproduction

430122, G03G 1309

Patent

active

046296697

ABSTRACT:
A colored image-forming method is initiated by forming a latent image on an image retainer in the form of a rotatable drum. Then, a powdered toner is caused to fly from a developer-feeding carrier and adhere to the retainer in the presence of an oscillating electric field. Similar steps are carried out using different powdered toners to superimpose toner images of different colors on the retainer. Each developer-feeding carrier has a magnet member to exert a magnetic force to the corresponding toner. A magnetic attracting force acting between the toner particles and the magnet member becomes smaller according to the increase of the number of the repetition of the above steps.

REFERENCES:
patent: 3893414 (1975-07-01), Hudson et al.
patent: 3961951 (1976-06-01), Mayer et al.
patent: 4337306 (1982-06-01), Kanbe et al.
patent: 4553500 (1985-11-01), Itaya et al.

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