Developing Device, Process Cartridge and Image Forming Apparatus
First Claim
1. An image forming apparatus comprising:
- a plurality of first cartridges aligned in a horizontal direction, wherein each of the plurality of first cartridges comprises;
a developing roller;
a supplying roller configured to supply developing agent to the developing roller;
a first conveying member having a first end portion and a second end portion that is opposite to the first end portion in a longitudinal direction of the developing roller, wherein the first conveying member is configured to be rotatable and to convey the developing agent in a first direction, the first direction being from the first end portion to the second end portion; and
a first frame comprising a first opening that faces the second end portion, wherein the first opening is configured to discharge the developing agent from the first cartridge to outside the first cartridge; and
a plurality of second cartridges aligned in the horizontal direction, wherein each of the plurality of second cartridges is configured to store the developing agent therein and is disposed above a respective one of the plurality of first cartridges, and wherein each of the plurality of second cartridges comprises;
a second conveying member that is configured to be rotatable and is configured to convey the developing agent in a second direction that is opposite to the first direction; and
a second frame comprising a second opening for supplying the developing agent from inside the second cartridge to the first cartridge,wherein the first frame further comprises a third opening for receiving the developing agent discharged from the second opening, andwherein a distance between the first end portion and the third opening is shorter than a distance between the second end portion and the third opening.
1 Assignment
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Accused Products
Abstract
A developing device includes: a first conveying unit provided within a developing agent storage chamber and that is configured to convey developing agent from one end of the developing agent storage chamber to another end of the developing agent storage chamber in a longitudinal direction of a developing agent carrier that is disposed with in a developing chamber and to supply the developing agent from the developing agent storage chamber to the developing chamber; a second conveying unit provided within the developing chamber and that is configured to convey the developing agent from the other end of the developing chamber to the one end of the developing chamber in the longitudinal direction and to supply the developing agent toward a developing agent carrier; and a third conveying unit provided between the one end of the developing agent storage chamber and the one end of the developing chamber.
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Citations
1 Claim
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1. An image forming apparatus comprising:
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a plurality of first cartridges aligned in a horizontal direction, wherein each of the plurality of first cartridges comprises; a developing roller; a supplying roller configured to supply developing agent to the developing roller; a first conveying member having a first end portion and a second end portion that is opposite to the first end portion in a longitudinal direction of the developing roller, wherein the first conveying member is configured to be rotatable and to convey the developing agent in a first direction, the first direction being from the first end portion to the second end portion; and a first frame comprising a first opening that faces the second end portion, wherein the first opening is configured to discharge the developing agent from the first cartridge to outside the first cartridge; and a plurality of second cartridges aligned in the horizontal direction, wherein each of the plurality of second cartridges is configured to store the developing agent therein and is disposed above a respective one of the plurality of first cartridges, and wherein each of the plurality of second cartridges comprises; a second conveying member that is configured to be rotatable and is configured to convey the developing agent in a second direction that is opposite to the first direction; and a second frame comprising a second opening for supplying the developing agent from inside the second cartridge to the first cartridge, wherein the first frame further comprises a third opening for receiving the developing agent discharged from the second opening, and wherein a distance between the first end portion and the third opening is shorter than a distance between the second end portion and the third opening.
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Specification