Developing mechanism and image forming apparatus

摘要

The present application discloses a developing mechanism including a developing device for developing electrostatic latent images and a container containing developer. The developing device includes a carrier carrying and supplying the developer to the electrostatic latent images; a first housing having a feed port through which the developer is fed; a first conveyance member conveying the developer along a first direction away from the feed port; and a first shutter mechanism selectively opening and closing the feed port. The container includes a second housing having a supply port from which the developer is supplied through the feed port to the developing device; a second shutter mechanism selectively opening and closing the supply port; and a second conveyance member conveying the developer along a second direction across the first direction for developer discharge through the supply port. The feed port is opened earlier than the supply port is opened.

主权项

1. A developing mechanism for development with developer in a main housing, the developing mechanism comprising:
a developing device configured to supply the developer to an electrostatic latent image and develop the electrostatic latent image; and a container configured to contain the developer and to be inserted into the main housing, wherein the developing device includes:
a carrier configured to carry and supply the developer to the electrostatic latent image;a first housing provided with a feed port through which the developer is fed and including an edge facing the container;a first conveyance member configured to convey the developer along a first direction away from the feed port; anda first shutter mechanism including a first shutter member configured to selectively displace between a first closing position for closing the feed port and a first opening position for opening the feed port; and the container includes:
a second housing provided with a supply port for supplying the developer through the feed port to the developing device;a second shutter mechanism configured to selectively open and close the supply port; anda second conveyance member configured to convey the developer along a second direction across the first direction and discharge the developer through the supply port, the second shutter mechanism includes a second shutter member that is displaced between a second closing position for closing the supply port and a second opening position for opening the supply port, and a first protrusion that protrudes from the second shutter member, and the second housing includes a protruding tongue that protrudes in the second direction so as to hit and displace the first shutter ember to the first opening position before the first protrusion hits the edge, the first protrusion is configured to displace the second shutter member from the second closing position to the second opening position to make the supply port communicate with the feed port, characterized in that the protruding tongue and the first protrusion are configured to cause displacement of the second shutter member from the second closing position to the second opening position after arrival of the first shutter member at the first opening position.