| 摘要 |
PURPOSE:To enable uniform and efficient prevention of fatigue owing to crystallization of a selenium photosensitive body without affecting adversely the image forming function thereof by forming the noble metal element of the I group of periodic table so as to exist to the contact part of a means for conveying a developer from a storage part. CONSTITUTION:Magnetic developing drums 12, 13 are provided to a magnetic brush developing device 10 mounted with a photosensitive body 11 and a developer is fed by screw type conveying members 14, 15, by which the developer is mixed. A toner from a hopper 16 for contg. the developer is supplied into a connecting pipe 23 by a screw type conveying member 21 and a manual driving member 22 for driving the member 21 and is dropped through a toner accepting port 18 onto agitating members 14, 15. The pipe 23 is constituted of the noble metal element of the I group of periodic table, for example, copper. |
