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

Claim 11:
12. A developing device comprising:
a developing case;
a communication portion connected to the developing case, the communication portion including a communication port in communication with an inside of the developing case and a slit portion adjacent to the communication port;
a shutter coupled to the communication portion to open or close the communication port;
a film member including a body portion having an opening in communication with the communication port, a fixing portion that extends from an edge of the opening in an operational direction of the shutter to be inserted into the slit portion, and a first extension portion extending outward from the body portion in the operational direction of the shutter;
an elastic sealing member attached to a lower surface of the body portion along an edge of the opening to surround the communication port;
a first adhesive layer on a lower surface of the elastic sealing member to attach the elastic sealing member to an outer circumferential portion of the communication portion; and
a second adhesive layer on a lower surface of the first extension portion to attach the first extension portion to the outer circumferential portion of the communication portion.