A developer supply kit for supplying a developer to an image forming apparatus
includes a container for accommodating a developer; an opening provided in the
container to permit discharging of the developer; and a feeding member, provided
in the container, for feeding the developer by rotation thereof. The feeding member
includes a lift portion for lifting the toner in the container, a guiding portion
for guiding the toner lifted by the lift portion downwardly toward the opening,
and a falling portion for letting the toner lifted by the lifting portion fall
without feeding it toward the opening with rotation of the feeding member. The
developer has an adhering strength which is not less than 0.60 g/cm2 and
less than 3.00 g/cm2 after a vertical pressure of 128.4 g/cm2 is
imparted to a layer of the developer.
