Abstract: A developing device including a housing, a developing roller rotatably provided to the housing, a layer thickness regulation blade contacting the developing roller, and a seal member arranged between the housing and each end of the developing roller, wherein the layer thickness regulation blade includes a blade main body extending along an axial direction of the developing roller, and a blade rubber part protruding from a surface of the blade main body facing the developing roller and contacting the developing roller, wherein an end surface of the blade rubber part in the axial direction is in contact with an inner end surface of the seal member in the axial direction, and wherein a suppression part configured to suppress a strength of flow of the developer is provided at a corner part between the blade rubber part and the seal member.

Abstract: A developing device including a housing, a developing roller, a seal member arranged between the housing and each end of the developing roller, and a layer thickness regulation blade including a blade main body, and a blade rubber part protruding from a surface of the blade main body and contacting the developing roller, wherein an end surface of the blade rubber part in an axial direction of the developing roller is in contact with an inner surface of the seal member in the axial direction, and wherein the blade rubber part has an inclined surface at each end thereof in the axial direction, the inclined surface extending toward an upstream side in a rotating direction of the developing roller while extending toward an outer side in the axial direction so as to extend to the seal member.

Abstract: A developing device includes: a frame; a developer carrying member rotatably supported to the frame; and a side seal. The developer carrying member is rotatable about its axis in a rotating direction and has an axial end portion and a remaining portion inward of the axial end portion in an axial direction. The side seal is disposed between the frame and a peripheral surface of the axial end portion and includes: a contact member that can contact the peripheral surface; a support member disposed between the contact member and the frame; and a double-sided tape for adhering the contact member to the supporting member. The contact member includes: a first seal member; and a second seal member disposed adjacent to and upstream of the first seal member in the rotating direction. The first seal member and the second seal member are affixed to one adhesive surface of the double-sided tape.

Abstract: A cleaning device includes: a collection member configured to contact a photosensitive member, on which an electrostatic latent image is configured to be formed, and collect foreign substances on the photosensitive member; a shaft configured to attract the foreign substances from the collection member so as to make the foreign substances cling thereto; a scraping member configured to contact the shaft and scrape the foreign substances cling on the shaft; and a housing configured to accommodate the collection member and the shaft, wherein the scraping member is mounted to the housing. The scraping member includes: an elastic member; and a fiber member configured to be adhered to the elastic member and slidingly contact the shaft. The elastic member is configured to press the shaft to such an extent that fibers of the fiber member are pressed and compressed.

Abstract: A developing device includes: a frame having an opening; a developer carrying member rotatably supported to the frame; and a side seal. The developer carrying member is rotatable about its axis in a rotating direction and has an axial end portion in an axial direction. The side seal is disposed between the frame and a peripheral surface of the axial end portion, and has a contact member contacting the peripheral surface. The contact member includes: a first seal member disposed adjacent to an edge of the opening in the axial direction; and a second seal member disposed adjacent to and upstream of the first seal member in the rotating direction. The first seal member permits developer to move inward in the axial direction and provides a mobility of developer therein higher than that of the second seal member that is made of a material that restricts movement of developer.

Abstract: A developing device includes: a frame; a developer carrying member rotatably supported to the frame; and a side seal. The developer carrying member is rotatable about its axis in a rotating direction and has an axial end portion and a remaining portion inward of the axial end portion in an axial direction. The side seal is disposed between the frame and a peripheral surface of the axial end portion and includes: a contact member that can contact the peripheral surface; a support member disposed between the contact member and the frame; and a double-sided tape for adhering the contact member to the supporting member. The contact member includes: a first seal member; and a second seal member disposed adjacent to and upstream of the first seal member in the rotating direction. The first seal member and the second seal member are affixed to one adhesive surface of the double-sided tape.

Abstract: A cleaning device includes: a collection member configured to contact a photosensitive member, on which an electrostatic latent image is configured to be formed, and collect foreign substances on the photosensitive member; a shaft configured to attract the foreign substances from the collection member so as to make the foreign substances cling thereto; a scraping member configured to contact the shaft and scrape the foreign substances cling on the shaft; and a housing configured to accommodate the collection member and the shaft, wherein the scraping member is mounted to the housing. The scraping member includes: an elastic member; and a fiber member configured to be adhered to the elastic member and slidingly contact the shaft. The elastic member is configured to press the shaft to such an extent that fibers of the fiber member are pressed and compressed.