Patent ID: 6922540

Claim:
A developer supply kit for supplying a developer to an image forming apparatus, said developer supply kit comprising: a container configured to accommodate a developer, wherein said container includes an opening to permit discharging of the developer; a feeding member, provided in said container, configured and positioned to feed the developer by rotation thereof; wherein said feeding member includes: a lift portion configured and positioned to lift the developer in said container; a guiding portion configured and positioned to guide the developer lifted by said lift portion downwardly toward said opening; and a fall-permitting portion configured and positioned to permit the developer lifted by said lift portion to fall without feeding the developer toward the opening with rotation of said feeding member, wherein the developer has an adhering strength which is not less than 0.60 g/cm 2 and less than 3.00 g/cm 2 after a vertical pressure of 128.4 g/cm 2 is imparted to a layer of the developer.