the charging device used for such the purpose, a strong electric field is produced between a charging member such as a stretched wire and the image carrying body that is a charged body, and corona charging is generated. Therefore, particles having electric charges such as toner and paper powders can adhere to the charging member.
Further, corona products such as ozone and nitrogen oxide can also adhere to the charging member.
Since such the adherent matters may lower charging characteristic, it is necessary to remove the adherent matters from the charging member such the wire.
Therefore, a charging device having a cleaning member for cleaning a charging member and a drive unit for moving the cleaning member has been developed.
Further, various technologies regarding the charging device having such the cleaning memberthe subscribers in the company or the school, the CSG HeNB only permits the access of a UE in the specific subscriber group which the CSG HeNB serves (for convenience of description, herein after a UE in a specific subscriber group is referred to as a CSG UE). A hybrid HeNB may form a CSG together with another HeNB, and permit the access of a CSG UE which the hybrid HeNB serves, at the same time, the hybrid HeNB may also permit the access of a non-CSG UE (i.e., a UE which does not belong to the CSG).
As can be seen from the above description, in the mobile communication system according to the related art, a plurality of radio resource management entities may be formed into a CSG