Patent ID: 8224224

Claim:
A cleaning blade configured to remove fine particles from a cleaning target by contact with the cleaning target, comprising: an elastic blade, a leading edge of the elastic blade including a friction coefficient of 0.5 or less; and a surface layer that covers the leading edge of the elastic blade, wherein a thickness of the surface layer at a position 50 μm away from the leading edge is between 1 and 50 μm, and wherein a hardness of the surface layer is greater than a hardness of the elastic blade, wherein a position 5 mm or less away from the leading edge of the elastic blade includes a tan Δ peak temperature that is 3 to 7° C. lower than a tan Δ peak temperature of a position greater than 5 mm away from the leading edge of the elastic blade, and wherein the following equation is satisfied: t 2 ≧t 1+40 wherein t 1 (° C.) represents the tan Δ peak temperature of the position greater than 5 mm away from the leading edge of the elastic blade and t 2 (° C.) represents a tan Δ peak temperature of the surface layer.