Electrophotography – Image formation – Transfer
Reexamination Certificate
2007-08-15
2009-10-27
Ngo, Hoang (Department: 2852)
Electrophotography
Image formation
Transfer
C399S066000
Reexamination Certificate
active
07610003
ABSTRACT:
In a tandem type color image forming apparatus having a function which collects a residual toner for recycle, a particle diameter distribution of a carrier is expressed as that a ratio of the number of carrier particles whose particle diameter is not smaller than φ40 μm is not greater than 5% and a ratio of the number of carrier particles whose particle diameter is not smaller than φ30 μm is not greater than 20%, or an intermediate transfer body which has a laminated structure including two or more layers and has a layer with the low hardness arranged on an image carrier, or a total toner layer thickness T1+T2+T3 of first to third transfer image is less than 30 μm.
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Takahashi Masashi
Watanabe Takeshi
Yoshida Minoru
Foley & Lardner LLP
Kabushiki Kaisha Toshiba
Ngo Hoang
Toshiba Tec Kabushiki Kaisha
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