CLEANING SYSTEM

A cleaning roller adsorbs foreign matter continuously for a long period of time without performing maintenance work on the cleaning roller. A cleaning roller (11) relatively moves by rotating while being in contact with a surface of an object to be cleaned (S), and removes foreign matter, such as dust and dirt, adhering to the surface of the object to be cleaned (S) by means of electrostatic force. A transferring roller (21) rotates while being in contact with the surface of the cleaning roller (11). The cleaning roller (11) is grounded via a voltage stabilizing circuit (12), and can be provided stably on the surface of the roller with electric charge for carrying out adsorption by means of the electrostatic force. The transferring roller (21) can be provided on the surface thereof with electric charge for adsorbing foreign matter adhering to the surface of the cleaning roller (11) by means of electrostatic force. The transferring roller is connected with an external power source (31) so as to constantly keep an electrification voltage for adsorbing the foreign matter by means of the electrostatic force.