Abstract: A developing apparatus having a developer carrying member for carrying a developer including toner and carrier to a portion opposed to an image bearing member, a first chamber having the developer carrying member disposed in its opening, a conveying member disposed in the first chamber for conveying the developer in the longitudinal direction of the developer carrying member, a second chamber to which the developer is supplied from the first chamber through a first communicating portion leading to the first chamber and which supplies the developer to a developing chamber through a second communicating portion leading to the first chamber, and an agitating and conveying member disposed in the second chamber and rotatable to agitate and convey the developer, the second chamber and the agitating and conveying member being disposed while inclined so that their second communicating portion side is higher than their first communicating portion side, the first communicating portion side of the first chamber being hi

Abstract: A developing apparatus is equipped with a developing container accommodating a developer including a toner and a carrier to develop at a developing position an electrostatic image formed on an image bearing member, a rotor for rotating the developing container in a path including the developing position, and a developer replenishing container for replenishing the developing container situated at the developing position by said rotor with the developer. An opening is provided on a side surface of the developing container, which allows surplus developer to spill out of said developing container situated at said developing position by said rotor. The apparatus is further equipped with a recovering container and a member for opening/closing the opening mentioned above. The recovering container recovers the surplus developer discharged from said opening utilizing a rotational motion of said rotor.

Abstract: A developing apparatus having a developer carrying member for carrying and conveying developer including toner and carrier to a portion opposed to an image bearing member, a first chamber for supplying the developer to the developer carrying member, a first conveying portion disposed in the first chamber for conveying the developer, a second chamber for supplying the developer to the first chamber, a second conveying portion disposed in the second chamber for conveying the developer, and a receiving port for receiving a supplied toner, wherein the developer is circulated between the first chamber and the second chamber by the first and the second conveying portion, the second conveying portion is inclined so that the downstream side in a developer conveying direction may be upper in the direction of gravity, and the supplied toner from the receiving port is supplied from just above the second conveying portion in the direction of gravity to the second conveying portion.

Abstract: An image forming apparatus includes an image bearing member; a plurality of first developing devices for developing an electrostatic latent image formed on the image bearing member at a developing position using a developer which includes a toner and a carrier; a rotatable member rotatable in a path including the first developing position, for supporting the plurality of first developing devices, wherein each of the plurality of first developing devices is effective to discharge excess developer produced by receiving the developer including the toner and the carrier to outside of each of the plurality of first developer devices using a rotation of the rotatable member; and a second developer container for developing an electrostatic latent image formed on the image bearing member at a second developing position using a developer including a toner, wherein the second developing device is disposed at a position so as to be non-rotatably adjacent to the image bearing member.

Abstract: An image forming apparatus includes an image bearing member; a first developer container for containing toner and carrier particles and for developing an electrostatic latent image formed on the image bearing member at a developing station; a rotatable member for rotating the first developer container along a path extending through the developing station, wherein the first developer container is effective to discharge residual matter produced by receiving the toner and carrier particles to outside of the first developer container using a rotation of the rotatable member; a first stretch that the second developer container for containing toner particles and for developing an electrostatic latent image formed on the image bearing member, wherein the second developer container is disposed at a position different from that of the developing station.

Abstract: A developing apparatus is equipped with a developing container accommodating a developer including a toner and a carrier to develop at a developing position an electrostatic image formed on an image bearing member, a rotor for rotating the developing container in a path including the developing position, and a developer replenishing container for replenishing the developing container situated at the developing position by said rotor with the developer. An opening is provided on a side surface of the developing container, which allows surplus developer to spill out of said developing container situated at said developing position by said rotor. The apparatus is further equipped with a recovering container and a member for opening/closing the opening mentioned above. The recovering container recovers the surplus developer discharged from said opening utilizing a rotational motion of said rotor.