Cleaning blade member

Details Cleaning blade member Cleaning blade member

2006-12-15

2008-08-26

Lateef, Marvin (Department: 4146)

Electrophotography

Cleaning of imaging surface

Blade

C399S343000, C399S351000

Reexamination Certificate

active

07418231

ABSTRACT:
A cleaning blade member for use in a cleaning section for removing toner on a toner-deposited body, the cleaning blade member comprising: an edge layer contacting the toner-deposited body; and a back layer provided on a back side of the edge layer, and wherein the edge layer has a Young's modulus of 8 to 20 MPa and an impact resilience at 25° C. of 20 to 40%, and when the Young's modulus of the edge layer is designated as Ea, a Young's modulus of the back layer is designated as Eb, a thickness of the edge layer is designated as Ta, and a thickness of the back layer is designated as Tb, a ratio (Rb/Ra) between a contribution rate Raof the Young's modulus of the edge layer represented by the following equation (1), and a contribution rate Rbof the Young's modulus of the back layer represented by the following equation (2) is 0.01 to 6.0, and a total Young's modulus (Ra+Rb) of the edge layer and the back layer is 7 to 14 MPa:in-line-formulae description="In-line Formulae" end="lead"?Ra=[TaEa/(Ta+Tb)]  (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?Rb=[TbEb/(Ta+Tb)].  (2)in-line-formulae description="In-line Formulae" end="tail"?

REFERENCES:
patent: 6456820 (2002-09-01), Sato et al.
patent: 6473589 (2002-10-01), Hisakuni
patent: 2542204 (1996-07-01), None
patent: 2002-214989 (2002-07-01), None
patent: 2002-214990 (2002-07-01), None

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