Cartridge and image forming apparatus
A cartridge attachable to and detachable from an image forming apparatus forming an image on a recording material, the cartridge includes: an image bearing member; a developer container that contains therein a developer; a developing member that is rotatable and carries the developer supplied from the developer container and supplies the developer to the image bearing member; a developer supplying member that is rotatable and provided in the developer container and in contact with the developing member to supply the developer to a surface of the developing member; and a contact member provided in the developer container and in contact with a surface of the developer supplying member, wherein the developer remaining on the image bearing member after image formation is collected to the developing member, and the developer collected to the developing member is collected into the developer container.
1. An image forming apparatus forming an image on a recording material, the image forming apparatus comprising:
an image bearing member;
a developer container that contains developer therein;
a developing member that is rotatable and carries the developer supplied from the developer container and supplies the developer to the image bearing member;
a developer supplying member that is rotatable and provided in the developer container and in contact with the developing member to supply the developer to a surface of the developing member; and
a contact member provided in the developer container and in contact with a surface of the developer supplying member,
wherein the developer remaining on the image bearing member after image formation is collected to the developing member,
wherein the developer collected to the developing member is collected into the developer container,
wherein the contact member is a brush-shaped member and has a fibrous member, and
wherein the fibrous member is configured to be able to enter a cell in the surface of the developer supplying member.
2. The image forming apparatus according to claim 1 , wherein the fibrous member scrapes a foreign substance on the surface of the developer supplying member to remove the foreign substance from the surface of the developer supplying member.
3. The image forming apparatus according to claim 1 , wherein the contact member has a facing surface that faces the surface of the developer supplying member, and
wherein the fibrous member is provided on the facing surface and extends in a direction perpendicular to the facing surface.
4. The image forming apparatus according to claim 1 , wherein the contact member has a plurality of the fibrous members.
5. The image forming apparatus according to claim 4 , wherein the foreign substance scraped by the plurality of fibrous members is held between the plurality of fibrous members.
6. The image forming apparatus according to claim 1 , wherein the developer supplying member has a rotation shaft portion and a foamed elastic member provided around the rotation shaft portion.
7. The image forming apparatus according to claim 1 , wherein the developer is supplied to the image bearing member so that a toner image formed on the image bearing member is transferred directly onto the recording material.
8. An image forming apparatus forming an image on a recording material, the image forming apparatus comprising:
an image bearing member;
a developer container that contains developer therein;
a developing member that is rotatable and carries the developer supplied from the developer container and supplies the developer to the image bearing member;
a developer supplying member that is rotatable and provided in the developer container and in contact with the developing member to supply the developer to a surface of the developing member; and
a contact member provided in the developer container and in contact with a surface of the developer supplying member,
wherein the developer remaining on the image bearing member after image formation is collected to the developing member,
wherein the developer collected to the developing member is collected into the developer container, and
wherein the developer container has, on an upstream side of a portion of contact between the surface of the developer supplying member and the contact member in a rotation direction of the developer supplying member, a holding region for holding the foreign substance removed by the contact member from the surface of the developer supplying member.
9. The image forming apparatus according to claim 8 , wherein a length of the holding region in the rotational direction of the supply roller is longer than the height of the holding region.