Patent ID: 6064844
Filing Date: 2000-05-16
Classification: G03G

Abstract:
A developing apparatus installed in a unit which is detachably attachable to a main body of an image forming apparatus, comprising:a developer bearing member for bearing and carrying a developer to a developing position; anda developer containing portion for containing the developer, said developer containing portion including an opening portion for supplying the developer to said developer bearing member, a sheet member for unsealably sealing the opening portion, and a partition wall for partitioning a space of said developer containing portion into a first space and a second space more remote from said developer bearing member than the first space;wherein an area of the partition wall is larger than an open area of said opening portion, the partition wall has an angle of 30.degree. or less with respect to a surface on which the sheet member is supported, and has an angle of 40.degree. or more with respect to a horizontal plane when said developing apparatus is attached to the main body of said image forming apparatus.