Image forming apparatus

An image forming apparatus comprising:

• a main body;
• a cover to open and close a front of the main body;
• a tray slidably mounted in the main body through the front of the main body opened by the cover;
• at least one developing cartridge mounted in the main body in a state in which the developing cartridge is received in the tray, the developing cartridge comprising an image carrier to form an image, a developing roller to supply a developing agent to the image carrier, and a plurality of driven coupler members connected to the image carrier and the developing roller;
• a plurality of driving coupler members provided at one side of the main body to transmit driving force generated from a driving source to the driven coupler members;
• a link member operating simultaneously with opening and closing of the cover to move in a first direction, the link member moving in a direction in which the tray is separated from the main body when the cover opens the main body and moving in a direction in which the tray is coupled to the main body when the cover closes the main body;
• and
• a guide member operating simultaneously with the link member to move in an axial direction of the driving coupler members, the guide member being pressed by the link member, when the cover opens the main body, to separate the driving coupler members from the driven coupler members, pressing of the guide member by the link member is released, when the cover closes the main body, to couple the driving coupler members to the driven coupler members.

An image forming apparatus comprising:

• a main body;
• a cover to open and close a front of the main body;
• a tray slidably mounted in the main body through the front of the main body opened by the cover;
• a plurality of developing cartridges mounted in the main body in a state in which the developing cartridges are received in the tray;
• a rail member coupled to the cover and operating simultaneously with opening and closing of the cover to move in a first direction to guide sliding of the tray;
• a link member operating simultaneously with the rail member to move in a first direction, the first direction being parallel to a direction in which the tray moves;
• a guide member operating simultaneously with the link member to move in a second direction perpendicular to the first direction;
• and
• a plurality of driving coupler members provided at one side of the main body to drive the developing cartridges mounted in the main body, the driving coupler members operating simultaneously with the guide member to move in the second direction.