Patent ID: 8875649

Claim:
An apparatus for dusting printed sheets with powder, the apparatus comprising: at least one powder nozzle; an actuating element mounted such that said actuating element can be adjusted into a position, in which said actuating element is situated in a jet path of said powder nozzle and the powder bounces off said actuating element; an extraction device for extracting the powder bouncing off said actuating element; and an air-conducting connection existing permanently between said powder nozzle and surroundings of the apparatus; and a housing having at least one outlet opening formed therein and a closure element for closing said outlet opening, said actuating element being formed by said closure element, and in that, if said outlet opening is not closed, said powder nozzle sprays the powder through said outlet opening and, if said outlet opening is closed, said air-conducting connection exists between said powder nozzle and the surroundings of the apparatus, said powder nozzle being one of a plurality of powder nozzles disposed in a nozzle row, said closure element being a common closure element extending over all of said powder nozzles of said nozzle row.