In a cleaning blade and an image-forming apparatus using a cleaning means
having the cleaning blade, the cleaning blade is composed of an edge
portion which is brought into contact with the image-bearing member and a
support portion which brings the edge portion into contact with the
image-bearing member, where the value at a peak temperature (t1) of a loss
tangent of the edge portion, tan .delta.1, is smaller than the value at a
peak temperature (t2) of a loss tangent of the support portion, tan
.delta.2, and a curve which represents the temperature dependence of the
loss tangent of the edge portion and a curve which represents the
temperature dependence of the loss tangent of the support portion
intersect at t1.degree. C. or above to t1+40.degree. C. or below. These
can maintain the surface state of a photosensitive member that does not
cause any smeared images or melt adhesion of toner even when non-magnetic
toners are used, promising a great improvement in reliability, and also
can deal with any situations even when the productivity has dramatically
been advanced.
