Electrophotography – Diagnostics – Cleaning
Reexamination Certificate
2011-06-28
2011-06-28
Gray, David M (Department: 2852)
Electrophotography
Diagnostics
Cleaning
C399S360000
Reexamination Certificate
active
07970297
ABSTRACT:
A powder conveying unit conveys powder input from a powder inlet of a powder containing chamber into the powder containing chamber. A powder detecting unit detects a full state of the powder conveyed by the powder conveying unit in the powder containing chamber. A sensor chamber is provided outside the powder containing chamber connected with each other. The powder detecting unit is provided in the sensor chamber, a bottom surface of the sensor chamber is at higher level than a bottom surface of the powder containing chamber, and the bottom surface of the sensor chamber is inclined downward toward the powder containing chamber.
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Hatayama Kohji
Inoue Tomofumi
Kichise Mitsutoshi
Meguro Yuuji
Muramatsu Takeru
Curran Gregory H
Gray David M
Harness & Dickey & Pierce P.L.C.
Ricoh Company Limited
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