Image forming apparatus for supplying different amounts of elect

Details Image forming apparatus for supplying different amounts of elect Image forming apparatus for supplying different amounts of elect

1990-05-07

1992-01-21

Moses, R. L.

Photocopying

Contact printing

Light boxes

355326, G03G 1516

Patent

active

050831674

ABSTRACT:
An image forming apparatus includes a movable image bearing member; an image forming device for forming a toner image on the image bearing member; a transfer device for electrostatically transferring the toner image from the image bearing member onto a transfer material at an image transfer position; a transfer material carrying device for carrying the transfer material to the transfer position; wherein the transfer device supplies different electric charge amount per unit area to an end of the transfer material in a direction of conveyance of the transfer material by the transfer material carrying device and to another portion of the transfer material.

REFERENCES:
patent: 4190348 (1980-02-01), Friday
patent: 4860048 (1989-08-01), Itoh et al.
patent: 4888621 (1989-12-01), Ohno
patent: 4912515 (1990-03-01), Amemiya et al.
patent: 4914737 (1990-04-01), Amemiya et al.
patent: 4935776 (1990-06-01), Fukui
patent: 4941003 (1990-07-01), Takeda et al.

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