Electrophotography – Image formation – Development
Reexamination Certificate
2009-06-08
2010-11-23
Gray, David M (Department: 2852)
Electrophotography
Image formation
Development
C399S260000
Reexamination Certificate
active
07840166
ABSTRACT:
In a method or device for dosing toner material in an electrophotographic printer or copier, toner material is introduced into at least one bucket chamber rotatably arranged in an opening at a bottom of a toner reservoir. The bucket chamber has a paddle wheel which seals the opening of the toner reservoir. As the paddlewheel rotates, toner material in the bucket chamber is conveyed into a region. The toner material conveyed from the paddlewheel is further conveyed with a screw conveyor. Also a toner reservoir is provided having a toner removal opening shaped to accommodate at least a portion of a paddlewheel.
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Knott Joseph
Ranner Josef
Schlageter Bernhard
Schmidl Reinhold
Schoch Bernd
Gray David M
Oce Printing Systems GmbH
Roth Laura K
Schiff & Hardin LLP
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