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

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

2007-02-23

2010-06-01

Porta, David P (Department: 2884)

Electrophotography

Image formation

Development

C399S286000

Reexamination Certificate

active

07729647

ABSTRACT:
An image forming apparatus includes a developer bearing member for transporting developer to an opposing position opposing an image bearing member. Regularly-disposed concave sections are formed on a surface of the developer bearing member. An alternating voltage that includes a first voltage for moving developer from the developer bearing member toward the image bearing member and a second voltage for moving developer from the image bearing member toward the developer bearing member is applied to the developer bearing member. A cycle period of the alternating voltage is smaller than or equal to a minimum width of the concave section in a circumferential direction of the developer bearing member divided by a moving velocity of a surface of the rotating developer bearing member.

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English Translation of JP06-083150A.
English Translation of JP2000-098708A.

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