Duplicating apparatus

Details Duplicating apparatus Duplicating apparatus

1985-12-02

1987-10-20

Braun, Fred L.

Photocopying

Including fiber optics

355140, G03G 1508

Patent

active

047010428

ABSTRACT:
A duplicating apparatus including a charge retentive drum arranged rotatably, an electrostatic latent image forming device, a non-contact type developing device, a transferring device for transferring a toner image onto a record paper and a fixing device for fixing the toner image onto the record paper. A correction electrode is provided between the developing device and transferring device and an AC bias voltage is applied to the correction electrode to generate a vibrating electric field. Image quality of the duplicated copies can be improved by passing the toner image through the vibrating electric field.

REFERENCES:
patent: 3907423 (1975-09-01), Hayashi et al.
patent: 3981267 (1976-09-01), Gardiner et al.
patent: 3981576 (1976-09-01), Inoue
patent: 4325627 (1982-04-01), Swidler et al.
patent: 4420244 (1983-12-01), Landa

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