Developing apparatus for image forming apparatus

Details Developing apparatus for image forming apparatus Developing apparatus for image forming apparatus

2006-09-05

2006-09-05

Tran, Hoan (Department: 2852)

Electrophotography

Image formation

Development

Reexamination Certificate

active

07103305

ABSTRACT:
A developing apparatus which uses a two-component developer consisting of a toner and carrier. The ratio between the amount of the developer M1which is drawn onto a developing sleeve and refluxes while being regulated by a doctor blade, and the amount of the developer (drawn amount) M2which passes through the doctor blade is M1/M2<10. The toner is a negatively-charged toner. In a charge amount distribution the number of toners of −1 fc/10 μm or more is 20% or less of the total number of toners.

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