Abstract: An image forming apparatus having a photosensitive element, is provided with a light source for scanning light to the photosensitive element; a light blocking member disposed in a light traveling path of the light from the light source and moving between a blocking position where the light blocking member blocks the light scanned from the light source and a withdrawal position where the light blocking member is withdrawn from the blocking position; a power supply unit for supplying electric power to the light source for scanning light; a power switch unit for regulating power supply from the power supply unit; and an operating part locating the light blocking member at the blocking position and controlling the power switch unit to cut off the power supply in a predetermined exposure condition. As a result, a user is kept from being exposed to the light from a light source.

Abstract: An image forming apparatus having a photosensitive element, is provided with a light source for scanning light to the photosensitive element; a light blocking member disposed in a light traveling path of the light from the light source and moving between a blocking position where the light blocking member blocks the light scanned from the light source and a withdrawal position where the light blocking member is withdrawn from the blocking position; a power supply unit for supplying electric power to the light source for scanning light; a power switch unit for regulating power supply from the power supply unit; and an operating part locating the light blocking member at the blocking position and controlling the power switch unit to cut off the power supply in a predetermined exposure condition. As a result, a user is kept from being exposed to the light from a light source.

Abstract: A multi-functional product is provided. Such a multi-functional product comprises a main body, a cover on which at least one hook is formed and to which an elastic force is applied in a direction to open the cover away from the main body, a locking lever that locks the cover in a closed position by connecting with the hook through an elastic force applied to the locking lever, and a releasing mechanism including one or more releasing devices that release the locking lever from the hook by rotating the locking lever.

Abstract: An electro-photographic image forming apparatus includes a main body provided with a first unit to perform a predetermined operation, a built-in switching mode power supply (SMPS) to rectify an input alternating current (AC) to generate a direct current (DC) to be supplied to the first unit, and first and second contact terminals formed at predetermined positions of the main body and electrically connected to the first unit and to the SMPS, respectively, and a developing unit detachably installed in the main body, and including at least one third contact terminal to electrically connect the first and second contact terminals to each other such that the DC generated by the SMPS is supplied to the first unit therethrough when the developing unit is installed in the main body. Accordingly, when the developing unit is separated from the main body, power supplied to the first unit is automatically cut off, thereby securing safety of a user.