Charging Device and Photosensitive Drum Component

A photosensitive drum component, comprising:

• a lower frame, wherein a photosensitive drum is installed inside said lower frame;
• an upper frame being installed on the lower frame;
• and
• a charging device being installed inside the upper frame,
• wherein said charging device comprises a corona grid and a fur brush, said corona grid has a side wall and a lower wall adjacent to said side wall, and said lower wall is provided with a plurality of grids, and a corona wire being located above the lower wall of said corona grid,
• wherein a decompression module is provided between said corona grid and said fur brush, one end of said decompression module being connected with said corona grid, and the other end of said decompression module being connected with said fur brush.