Patent ID: 11927898
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A developing device comprising:
a developing case to accommodate a developer;
a developer supply portion connected to the developing case, the developer supply portion including a supply port to supply the developer to the developing case and a slit portion adjacent to the supply port;
a shutter coupled to the developing supply portion to open or close the supply port; and
a sealing member, attached to an outer circumferential portion of the developer supply portion the sealing member including
a film member having an opening in communication with the supply port;
an elastic sealing member; and
a fixing portion that extends toward an inside of the opening to be inserted into the slit portion by surrounding an edge of the supply port so that the fixing portion is attached to a lower surface of the elastic sealing member via the slit portion.