| 摘要 |
PROBLEM TO BE SOLVED: To stably maintain a developer and a developer transport rate over a long period of time by selecting a two-component developer used as well as by modifying a surface of a developer bearing member on which a two-component developer is carried and transported. SOLUTION: A development device is provided which has a developer carrier 2 which is disposed opposite to an image carrier 1 and on which a two-component developer (developer) including a toner and carrier is carried and transported, and which converts an electrostatic latent image on the image carrier 1 to a visible image, wherein the developer uses the carrier having a shape factor SF-1 of≤120 and an intensity of magnetization in a magnetic field of 1,000 Oe being 30-60 emu/g, and the developer carrier 2 has a smooth peripheral surface 3 on which the developer is slidable, wherein grooves 4 capable of holding and transporting the developer are formed on the smooth peripheral surface 3. COPYRIGHT: (C)2008,JPO&INPIT |
