Image forming apparatus for supplying power to members of a rota

Details Image forming apparatus for supplying power to members of a rota Image forming apparatus for supplying power to members of a rota

1995-05-31

1997-07-08

Grimley, Arthur T.

Photocopying

Contact printing

Light boxes

355200, 439151, 439700, 439824, G03G 1500, G03G 1501

Patent

active

056467214

ABSTRACT:
An image forming apparatus of the type having a rotary developing device or revolver, and a power supply device. When the revolver is rotated to bring one of its developing sections to a developing position, the end of a developing roller disposed in the developing section faces a bracket mounted on a rear wall included in the apparatus body. A retractable rod-like terminal is mounted on the bracket and constantly biased by a spring. A bias for development is applied from a bias circuit to the developing roller via the retractable terminal.

REFERENCES:
patent: 3987756 (1976-10-01), Katayama et al.
patent: 5243395 (1993-09-01), Koike et al.

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