Abstract: An electrophotographic image forming apparatus includes a recording medium storage unit in which a recording medium is stored, a pickup unit to pick up the recording medium stored in the recording medium storage unit, a pair of transport rollers being engaged with each other to rotate and transport the recording medium picked up by the pickup unit; an image forming unit to form an image on the recording medium transferred by the pair of transport rollers; and a frame including a first support region to support at least one of the pair of transport rollers, and a second support region to support at least a part of the image forming unit, wherein the frame further includes a vibration blocking slit that is disposed between the first and second support regions to block vibration from being transmitted from the first support region to the second support region.

Abstract: An image forming apparatus is provided. The apparatus includes a body provided with an opening at one side thereof, a developing tray movably installed at the opening, a plurality of developing units mounted to the developing tray, and a pair of frames forming opposite inner sides of the body. The frames are provided with a plurality of seating grooves to support lower ends of the developing units such that the developing units are supported by the frames, and therefore the positions of the photosensitive bodies of the developing units with respect to other constituents supported by the frames may be accurately regulated.

Abstract: An image forming apparatus includes an image forming unit to form an image on a print medium, a fixing unit to fix the image formed by the image forming unit on the print medium, and a guide member installed in a moving path where air moves along between the image forming unit and the fixing unit so that air inhaled through an inhaling unit formed at one side of a main frame can be exhausted to an exhaust unit formed at the other side of the main frames, and to guide a moving direction of the air so that the air inhaled through the inhaling unit can move to the image forming unit along the moving path.

Abstract: An electrophotographic image forming apparatus includes a recording medium storage unit in which a recording medium is stored, a pickup unit to pick up the recording medium stored in the recording medium storage unit, a pair of transport rollers being engaged with each other to rotate and transport the recording medium picked up by the pickup unit; an image forming unit to form an image on the recording medium transferred by the pair of transport rollers; and a frame including a first support region to support at least one of the pair of transport rollers, and a second support region to support at least a part of the image forming unit, wherein the frame further includes a vibration blocking slit that is disposed between the first and second support regions to block vibration from being transmitted from the first support region to the second support region.

Abstract: A duplex image forming apparatus includes a driving unit which has driving rollers and driven rollers to reversely feed the paper printed on the first surface to a duplex printing part or discharge the paper printed on the first and second surfaces, and a separation unit which separates the driven rollers from the driving rollers while the paper printed on the first surface is reversely fed and registered by duplex rollers of the duplex printing part. Accordingly, when the paper is registered by the duplex rollers, because the paper is not caught in the driving rollers and the driven rollers, the paper can be easily registered.

Abstract: An image forming apparatus includes an image forming unit to form an image on a print medium, a fixing unit to fix the image formed by the image forming unit on the print medium, and a guide member installed in a moving path where air moves along between the image forming unit and the fixing unit so that air inhaled through an inhaling unit formed at one side of a main frame can be exhausted to an exhaust unit formed at the other side of the main frames, and to guide a moving direction of the air so that the air inhaled through the inhaling unit can move to the image forming unit along the moving path.

Abstract: A duplex image forming apparatus includes a driving unit which has driving rollers and driven rollers to reversely feed the paper printed on the first surface to a duplex printing part or discharge the paper printed on the first and second surfaces, and a separation unit which separates the driven rollers from the driving rollers while the paper printed on the first surface is reversely fed and registered by duplex rollers of the duplex printing part. Accordingly, when the paper is registered by the duplex rollers, because the paper is not caught in the driving rollers and the driven rollers, the paper can be easily registered.