| 摘要 |
PURPOSE:To attain development without making a toner image on a a photosensitive body irregular and fogging, in an inexpensive constitution. CONSTITUTION:This developing device for an electrophotographic recorder is provided with a cylindrical thin film member 7 coming into contact with an electrostatic latent image on a photosensitive body 10 and developing the electrostatic latent image with toner 5 held on the surface, a driving roller 21 located on both ends of the cylindrical thin film member 7, pressing the cylindrical thin film member 7 from its outside and rotated to drive and a driven roller 23 pressing the cylindrical thin film member 7 from its inside, at the position opposite to the driving roller 21 via the cylindrical thin film member 7 and driven-rotated. Moreover, a roller-like toner supplying member 26 using the rotary shaft of the driving roller 21 as a core material, provided with a formed elastic body or a layer composed of a brush on the outer periphery of the rotary shaft and supplying the toner 5 onto the surface of the cylindrical thin film member 7 and a regulating blade 6 being in press-contact with the cylindrical thin film member 7 at the position in the downstream side of a rotation than the position where the cylindrical thin film member 7 is separated from the driven roller 23, attached so as to press the bulge of the cylindrical thin film member and regulating the thickness of a toner layer are provided. |
