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Image forming apparatus and toner cartridge

  • US 10,146,156 B2
  • Filed: 01/26/2018
  • Issued: 12/04/2018
  • Est. Priority Date: 10/07/2015
  • Status: Active Grant
First Claim
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1. An image forming apparatus comprising:

  • a photosensitive drum extending in an axis direction;

    a developing device including a developing roller extending in the axis direction and a developing frame having a toner receiving port, the developing device movable with respect to the photosensitive drum in an arrangement direction of the photosensitive drum and the developing roller; and

    a toner cartridge including;

    a coupling tube being configured to be coupled to the developing device, the coupling tube extending in the arrangement direction, the coupling tube having a toner supply port, the toner supply port being configured to face the toner receiving port with the coupling tube being coupled to the developing device;

    a conveyance tube being configured to convey the toner to the coupling tube, the conveyance tube extending in the axis direction;

    a first conveyance member extending in the arrangement direction, at least a part of the first conveyance member being positioned in the coupling tube; and

    a second conveyance member extending in the axis direction, the second conveyance member being positioned in the conveyance tube.

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