Image forming apparatus, process cartridge, developing unit,...

Electrophotography – Diagnostics – Unit or part identification

Reexamination Certificate

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Details

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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