Abstract: A battery module ac includes a cell stack in which a plurality of battery cells are vertically stacked; a module housing including a base plate supporting the cell stack, and a pair of side plates covering both side portions of the cell stack and each including a spark direction changing portion formed by bending an end portion of the side plate in a longitudinal direction of the side plate toward the cell stack; and a bus bar frame assembly covering an opening portion formed on a side of the module housing in a longitudinal direction of the module housing, the bus bar frame assembly including a bus bar frame coupled to a side of the cells tack in a longitudinal direction of the cell stack and a bus bar located on the bus bar frame and coupled to an electrode lead of the battery cell.

Abstract: A battery pack includes a sub-pack including a plurality of battery modules that are located adjacent to one another; a duct coupled to a side of the sub-pack in a width direction of the sub-pack; and a duct cover covering a duct opening portion formed on a side of the duct in a longitudinal direction of the duct, the duct cover including a filter having a mesh structure.

Abstract: A battery module includes a cell stack in which a plurality of battery cells are vertically stacked; a module housing including a base plate supporting the cell stack and a pair of side plates covering both side portions of the cell stack; a bus bar frame assembly covering an opening portion formed on a side of the module housing in a longitudinal direction of the module housing; and a plurality of spark delay portions protruding from an inner surface of each of the pair of side plates and spaced apart from one another in a height direction of the side plate.

Abstract: An image forming apparatus to check an amount of waste toner stored in a waste toner container in stages. The image forming apparatus includes a main body, a waste toner container which is installed in the main body to store waste toner, a light emitting part which emits light to detect an amount of the waste toner stored in the waste toner container, a plurality of light receiving parts which receive the light emitted from the light emitting part, and a light distribution member which distributes the light emitted from the light emitting part to the plurality of light receiving parts. Waste toner detecting regions are respectively defined on light paths between the light distribution member and the plurality of light receiving parts. The waste toner detecting regions are located at different positions along an accumulated direction of the waste toner in the waste toner container.

Abstract: An image scanning apparatus includes a reversal tray on which printable media are temporarily stacked, and a reverse roller installed inside a main body immediately before the reversal tray at a junction between the reversal tray and an end of a second moving path, which is driven in both clockwise and anti-clockwise directions by power transmitted via a discharge roller to guide one of the printable media towards and away from the reversal tray along a second moving path, wherein a feeder, a pick-up roller, a scanning unit, a discharge tray, and transport rollers are installed on a first moving path in order to scan images from one side of the printable medium, and the reversal tray and the reverse roller are installed on the second moving path in order to scan images from the other side of the printable medium.

Abstract: An image forming apparatus includes a main body, a roller detachably attached to/from the main body, a supporting member supporting a rotary shaft of the roller, and a locking unit which includes a locker frame and a locker arm. The locker arm is elastically biased toward the locking position and is moved to a releasing position when a user pushes the locker arm. In addition, the locker arm is movably coupled to the locker frame fixed on the main body, and installed on the main body in a state where the locking unit is assembled in advance. Therefore, assembling processes of the apparatus can be simple, and a user can assemble the apparatus easily.

Abstract: An image scanning apparatus includes a reversal tray on which printable media are temporarily stacked, and a reverse roller installed inside a main body immediately before the reversal tray at a junction between the reversal tray and an end of a second moving path, which is driven in both clockwise and anti-clockwise directions by power transmitted via a discharge roller to guide one of the printable media towards and away from the reversal tray along a second moving path, wherein a feeder, a pick-up roller, a scanning unit, a discharge tray, and transport rollers are installed on a first moving path in order to scan images from one side of the printable medium, and the reversal tray and the reverse roller are installed on the second moving path in order to scan images from the other side of the printable medium.

Abstract: An image forming apparatus to check an amount of waste toner stored in a waste toner container in stages. The image forming apparatus includes a main body, a waste toner container which is installed in the main body to store waste toner, a light emitting part which emits light to detect an amount of the waste toner stored in the waste toner container, a plurality of light receiving parts which receive the light emitted from the light emitting part, and a light distribution member which distributes the light emitted from the light emitting part to the plurality of light receiving parts. Waste toner detecting regions are respectively defined on light paths between the light distribution member and the plurality of light receiving parts. The waste toner detecting regions are located at different positions along an accumulated direction of the waste toner in the waste toner container.

Abstract: An image forming apparatus includes a main body, a roller detachably attached to/from the main body, a supporting member supporting a rotary shaft of the roller, and a locking unit which includes a locker frame and a locker arm. The locker arm is elastically biased toward the locking position and is moved to a releasing position when a user pushes the locker arm. In addition, the locker arm is movably coupled to the locker frame fixed on the main body, and installed on the main body in a state where the locking unit is assembled in advance. Therefore, assembling processes of the apparatus can be simple, and a user can assemble the apparatus easily.