Electrophotography – Diagnostics – Unit or part identification
Reexamination Certificate
2007-01-02
2007-01-02
Ngo, Hoang (Department: 2852)
Electrophotography
Diagnostics
Unit or part identification
C399S027000, C399S028000, C399S119000, C399S120000, C399S259000
Reexamination Certificate
active
10912207
ABSTRACT:
A carrier and a dummy toner are stored in a developing unit of a process cartridge in a brand new status. A plurality of process cartridges corresponding to a plurality of color toners is used in common. The color toners are respectively supplied to the developing unit from toner supply units after the process cartridges in the brand new status are installed in installation sections in a main unit of an image forming apparatus.
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Hatori Satoshi
Katoh Tsutomu
Mizuishi Haruji
Narumi Satoshi
Tamaki Shinji
Ngo Hoang
Ricoh & Company, Ltd.
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