Image forming apparatus

Details Image forming apparatus Image forming apparatus

1995-01-11

1997-01-28

Ramirez, Nestor R.

Electrophotography

Image formation

Transfer

399 66, G03G 1516

Patent

active

055982565

ABSTRACT:
An image forming apparatus includes an image bearing member for bearing an image, a transfer charging device for transferring the image from the image bearing member onto a recording material at a transfer position, a power source for supplying a voltage to the transfer charging device during an image transfer operation, and a control device for changing an output of the transfer charging device from a first level to a second level prior to arrival of an image area of the image bearing member at the transfer position, wherein the second level is higher than a third level of the output which is a level when the image area is at the transfer position.

REFERENCES:
patent: 3970381 (1976-07-01), Meagher et al.
patent: 4190348 (1980-02-01), Friday
patent: 5083167 (1992-01-01), Fukushima et al.
patent: 5172172 (1992-12-01), Amemiya et al.
patent: 5200784 (1993-04-01), Kimura et al.
patent: 5438399 (1995-08-01), Asai
patent: 5450180 (1995-09-01), Ohzeki et al.

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