Abstract: An aerosol generating system includes: a cavity configured to accommodate at least a portion of a cigarette; a first induction coil located around the cavity; a second induction coil located around the cavity and connected to the first induction coil in parallel; and a battery configured to supply an alternating current to the first induction coil and the second induction coil, wherein the first induction coil and the second induction coil have different resonant frequencies.

Abstract: An aerosol generating device includes a first vaporizer configured to generate a first aerosol by heating a first liquid composition, a second vaporizer configured to generate a second aerosol by heating a second liquid composition, and a controller controlling power supplied to the first vaporizer and the second vaporizer, based on a first mode, in which a smokeless aerosol is generated, and a second mode, in which a transport amount of nicotine included in the second liquid composition is adjusted.

Abstract: An image forming apparatus includes a main body; an operation panel coupled to the main body to rotate between a storage position and a use position; a stopper positioned on the operation panel; a stopper support unit, located on a rotation trajectory of the stopper with interference, which has a blocking position to block a rotation of the operation panel to the use position and the storage position, and a non-blocking position to allow a rotation of the operation panel; an elastic member to generate an elastic force in a direction where the stopper support unit is located in the blocking position; and an operation member to rotate the stopper support unit to the non-blocking location.

Abstract: An image forming apparatus includes a main body; an operation panel coupled to the main body to rotate between a storage position and a use position; a stopper positioned on the operation panel; a stopper support unit, located on a rotation trajectory of the stopper with interference, which has a blocking position to block a rotation of the operation panel to the use position and the storage position, and a non-blocking position to allow a rotation of the operation panel; an elastic member to generate an elastic force in a direction where the stopper support unit is located in the blocking position; and an operation member to rotate the stopper support unit to the non-blocking location.