Developer, developer cartridge, and image forming apparatus

Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...

Reexamination Certificate

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C430S110400, C399S252000

Reexamination Certificate

active

07090954

ABSTRACT:
In order to control the filming, a developer comprises developer primary particles, each comprising at least a resin and a colorant and an additive agent added to the developer primary particles and having a particle diameter smaller than that of the developer primary particles, wherein an extrication amount of the additive agent in the developer primary particles is smaller than 5.2×10−5part by weight with respect to the developer primary particles.

REFERENCES:
patent: 6485876 (2002-11-01), Takezawa et al.

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