Electrophotography – Internal machine environment – Particle or contaminant control
Reexamination Certificate
2008-06-03
2011-10-18
Royer, William J (Department: 2852)
Electrophotography
Internal machine environment
Particle or contaminant control
Reexamination Certificate
active
08041249
ABSTRACT:
After-transfer remaining toner is reversely transferred from a transfer member to an image carrier. A toner collecting/charging device for temporarily collecting and charging the after-transfer remaining toner remaining on the transfer member includes a toner collecting/charging roller which is provided in such proximity to the transfer member as not to make contact with a primarily transferred toner image, and which has a collecting function of temporarily collecting the after-transfer remaining toner and a charging function of charging the after-transfer remaining toner to a specified polarity, power supplies which are so connected that a voltage in which an AC voltage is superimposed on a DC voltage is applied to the toner collecting/charging roller, and a selector switch for changing a waveform of the AC voltage so that the toner collecting/charging roller is switched between a toner-collecting mode and a toner-releasing mode.
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Japanese Office Action mailed on May 26, 2009 directed at counterpart application No. 2007-147952;7 pages.
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Konica Minolta Business Technologies Inc.
Morrison & Foerster / LLP
Royer William J
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