Cleaning device, developing device, process cartridge and image forming apparatus with elastically contacting sheet

摘要

A cleaning device wherein a cleaner container is provided with an opening, opposing an image bearing drum, for permitting a developer removed from the drum by a cleaning member to enter the container. The cleaning member is fixed at a downstream side of the opening with respect to a rotational moving direction of the drum. The container is provided with a fixing surface for a flexible sheet at an upstream side of the opening with respect to the direction. The sheet is fixed to the fixing surface at an end portion thereof opposite an end portion thereof where the sheet contacts the drum, and at an end portion of the fixing surface with respect to a drum axis direction, the fixing surface protrudes toward a upstream side with respect to a rotational moving direction of the drum beyond a central portion of the fixing surface.

主权项

1. A cleaning device mountable to an image forming apparatus including a rotatable image bearing member for bearing an image of a developer, said cleaning device comprising:
a cleaning member for removing the developer remaining on the image bearing member; a cleaner container accommodating a developer removed by said cleaning member; and a sheet elastically contacting the image bearing member, wherein said cleaner container is provided with an opening, opposing the image bearing member, for permitting the developer removed from the image bearing member by said cleaning member to enter said cleaner container, wherein said cleaner container is provided with a fixing surface at an upstream side of the opening with respect to a rotational moving direction of the image bearing member, wherein said sheet is fixed to said fixing surface, wherein said fixing surface protrudes toward an upstream side with respect to the rotational moving direction, wherein said fixing surface includes an end portion and a center portion with respect to the rotational axis direction of the image bearing member, and wherein a length of the end portion from the opening to the upstream side is longer than that of the center portion.