Image forming apparatus

Details Image forming apparatus Image forming apparatus

2011-03-08

2011-03-08

Gray, David M (Department: 2852)

Electrophotography

Supplemental electrophotographic process

Exposure or charging

C399S249000, C399S264000, C430S110100

Reexamination Certificate

active

07903998

ABSTRACT:
An image forming apparatus having at least a latent electrostatic image bearing member, and a recharging unit configured to recharge a residual toner remaining on the latent electrostatic image bearing member, wherein after transfer, the residual toner is passed through the recharging unit and is then recovered in a developing device; a charging component of the recharging unit that comes into contact with the latent electrostatic image bearing member is a polymer sheet having a surface roughness (Ra) of 0.12 μm to 0.51 μm; the toner contains at least a pigment, a binder resin, and a releasing agent, and contains inorganic fine particles as an external additive, and the amount of the inorganic fine particles and the amount of the releasing agent satisfy three specific Expressions.

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