Electrophotography – Image formation – Development
Reexamination Certificate
2006-07-18
2006-07-18
Ngo, Hoang (Department: 2852)
Electrophotography
Image formation
Development
C399S119000, C399S256000, C399S263000
Reexamination Certificate
active
07079793
ABSTRACT:
A developing unit has first and second partition walls and which divide the inside of a developer reservoir into first to third chambers parallel to the developing roller, and first to third mixers which are disposed in the first to third chambers. The first mixer supplies developer to the developing roller by stirring and carrying from one end side to the other end side. The second mixer feeds by stirring and carrying the toner replenished from a replenish device and developer fed from the first chamber to one end side of the first mixer. The third mixer feeds the toner collected from a collection mechanism to one end side of the first mixer by stirring and carrying at a speed lower than the second mixer.
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U.S. Appl. No. 10/866,693, filed Jun. 15, 2004, Amano et al.
U.S. Appl. No. 10/802,046, filed Mar. 17, 2004, Ikeda et al.
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Amano Takafumi
Ikeda Takashi
Kato Tetsuo
Kobayashi Yukie
Nomura Susumu
Foley & Lardner LLP
Kabushiki Kaisha Toshiba
Ngo Hoang
Toshiba Tec Kabushiki Kaisha
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