Two-color image forming apparatus

Details Two-color image forming apparatus Two-color image forming apparatus

1985-07-26

1986-10-28

Prescott, A. C.

Photocopying

Including fiber optics

355 3DD, G03G 1500, G03G 1501

Patent

active

046195181

ABSTRACT:
When, in a two-color image forming apparatus, a first visible image is formed on a photosensitive drum, and sequentially a second visible image is formed on the drum on which the first visible image remains, said second visible image being different in color from said second visible image, a cylindrical non-magnetic sleeve rotates in a direction opposite to a rotation of a permanent magnet equipped with the sleeve, thereby enabling a developer to be conveyed in a direction opposite to a rotation of the permanent magnet.

REFERENCES:
patent: 4086006 (1978-04-01), Hauser et al.
patent: 4308821 (1982-01-01), Matsumoto et al.
patent: 4395112 (1983-07-01), Miyakawa et al.
patent: 4413899 (1983-11-01), Karasawa et al.
patent: 4416533 (1983-11-01), Tokunaga et al.
patent: 4486089 (1984-12-01), Itaya et al.
patent: 4538898 (1985-09-01), Kanno et al.

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