| 摘要 |
PROBLEM TO BE SOLVED: To prolong the life of a unit by arranging a memory removing member provided with plural brush bodies in order to remove toner memory remaining on a photoreceptor drum and using another brush body when one brush body is deteriorated. SOLUTION: The memory removing member 25 having plural brush bodies 27 and 28 is arranged in a device provided with the photoreceptor drum 21, a brush type electrifying roller 22 and the memory removing member as one unit, and the supporting body 26 of the member 25 is rotated when one brush body 27 can not normally act because it is soiled. Then, another brush body 28 is positioned on the drum 21 so as to realize the continuous use of the device, and the unit is used until the life of the photoreceptor drum ends. |
