Developing unit, process cartridge, and image forming method...

Details Developing unit, process cartridge, and image forming method... Developing unit, process cartridge, and image forming method...

2008-04-25

2011-10-25

Royer, William J (Department: 2852)

Electrophotography

Image formation

Development

C399S272000, C399S277000

Reexamination Certificate

active

08045892

ABSTRACT:
A developing unit used in an image forming apparatus with a latent image carrier includes a developer carrier, a supply compartment, a recovery compartment, a separation member, and a gap. The developer carrier facing the latent image carrier rotates while carrying two-component developer containing toner and carrier and supplies the toner to the latent image. The supply compartment includes a supply transport member to transport the developer in a first direction. The recovery compartment includes a recovery transport member to transport the developer in a second direction. The separation member includes one end portion facing the latent image carrier at a facing area. The separation member separates the supply compartment and the recovery compartment and is disposed above the recovery compartment behind the separation member. The gap is provided at the facing area. The gap has a width of not more than 1.4 millimeters.

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U.S. Appl. No. 12/252,693, filed Oct. 16, 2008, Sakata.

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