| 摘要 |
PURPOSE:To obtain high-quality images which are free from toner contamination and fogging by making combination use of the fine particles of a specific positive chargeable resin with specific inorg. fine powder. CONSTITUTION:An electrifying member is brought into contact with a body to be electrified and a voltage is impressed thereto from the outside to electrify the member. The member is developed by using a developer contg. a toner, the fine particles of the positive chargeable resin having 0.03 to 1.0mum average grain size and 10<6> to 10<9>OMEGA.cm specific electric resistance and the hydrophobic inorg. fine powder. The particles of the positive chargeable resin act to adsorb the fine powder of free silica on the surface. The particles of the positive chargeable resin slipped from the cleaning blade of an image forming device having a contact electrifying device are attracted to the contact electrifying member and thereafter, the free inorg. fine powder slipped from the cleaning blade is attracted on the surface to protect the surface of the photosensitive body. The high-quality images which are free from the toner contamination and fogging are thus obtd. |
