Image forming apparatus, image forming method, and transfer...

Details Image forming apparatus, image forming method, and transfer... Image forming apparatus, image forming method, and transfer...

2011-04-26

2011-04-26

Gray, David M (Department: 2852)

Electrophotography

Control of electrophotography process

Responsive to copy media characteristic

Reexamination Certificate

active

07933527

ABSTRACT:
In an image forming apparatus, an electrostatic latent image formed on a surface of a photoreceptor is developed into a toner image. A printing paper transported on a transport belt is brought into contact with the surface of the photoreceptor and an electric field is applied to the printing paper from a rear surface of the transport belt by a transfer roller to transfer the toner image onto the printing paper. The transfer roller applies different levels of electric field to the printing paper, so that a predetermined transfer electric field is applied to a region other than a leading edge of the printing paper being transported. An electric field weaker than the predetermined transfer electric field is applied to the leading edge. Even in the presence of a projection generated when the printing paper is cut, the printing paper naturally strips off from the surface of the photoreceptor.

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