Image forming apparatus having a transferring unit improved in o

Details Image forming apparatus having a transferring unit improved in o Image forming apparatus having a transferring unit improved in o

1996-11-25

1998-06-02

Grimley, Arthur T.

Electrophotography

Control of electrophotography process

Control of transfer

399 51, 399150, 399314, 430126, G03G 1516

Patent

active

057615721

ABSTRACT:
An image forming apparatus including a photoreceptor, an electrically charging unit for evenly electrically charging the photoreceptor to a predetermined potential, a light exposure unit for exposing a surface portion of the evenly electrically charged photoreceptor to light so as to form an electrostatic latent image, a developing unit for causing toner to adhere to the photoreceptor surface portion exposed to light so as to develop the electrostatic latent image into a toner image, and a transferring unit to which a predetermined transferring voltage is applied for transferring the toner image to a sheet. Before the tip end of the toner image reaches the position opposite to the transferring unit but after the tip end of the sheet has reached the position opposite to the transferring unit, the application of the predetermined transferring voltage to the transferring unit is started.

REFERENCES:
patent: 5436700 (1995-07-01), Kikuchi et al.
patent: 5598256 (1997-01-01), Kimura et al.
patent: 5610697 (1997-03-01), Arai

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