| 摘要 |
PURPOSE:To replenish and remove a toner quickly and easily, by providing a magnetic field generating body which is capable of rotating normal and reverse, and an attachable and detachable toner vessel, and providing a deeveloping part of the toner vessel between an image carrying body and the magnetic filed generating body, in a picture forming device. CONSTITUTION:As for a magnet roller 3, both its ends are axially supported by a bearing body 4, and a toner vessel 1 is installed to the bearing body so as to be freely attachable and detachable. When the magnet roller 3 is rotated in the direction as indicated with an arrow (a), a toner T in a toner store part 10 is fed out through a gap beta by receiving its magnetic field action, and in a developing part 12 positioned between an image carrying body 2 and the magnet roller 3, the image carrying body surface is developed. In this regard, the remaining toner advances toward a toner collecting part 11. Also, at the time of non-picture in case when a moving type picture forming device is in a return-motion, it is also possible to return the toner advancing toward the collecting part 11, to the store part 10, by rotating reverse the magnet roller 3 in the direction as indicated with an arrow (b). Since the toner vessel 1 is freely attachable and detachable, the toner is removed from the device easily, and the toner can be replenished quickly. |
