Developing unit, image forming apparatus, and floating...

Details Developing unit, image forming apparatus, and floating... Developing unit, image forming apparatus, and floating...

2011-06-14

2011-06-14

Brase, Sandra L (Department: 2884)

Electrophotography

Image formation

Development

C399S092000

Reexamination Certificate

active

07962074

ABSTRACT:
A suction duct that sucks air is provided downstream from a magnet roller that applies a developer to a photoconductor while rotating, in a direction of rotation of the photoconductor, and upstream of a surface potential sensor that measures surface potential of the photoconductor. Moreover, ribs for adjusting an air flow are arranged within the suction duct in such a manner that a width of an air flow passage formed by a rear end in a direction of air flow and a forward end of a nearest rib in the direction of air flow is narrowed from a rib installed upstream in the direction of air flow toward a rib installed downstream. The collection duct collects a floating developer by using a negative pressure.

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patent: 2003-029522 (2003-01-01), None

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