| 摘要 |
PURPOSE:To improve cleaning performance, to extend the life of a cleaning blade, and to reduce the size of a device by forming a demagnetizing head and the cleaning blade in one body, and carrying out demagnetization and cleaning at the same time. CONSTITUTION:An electromagnet 1 as a demagnetizing member and a blade 2 as a cleaning member are formed in one body. When residual toner 4 on a magnetic recording medium 3 moves in a conveyance direction as shown by an arrow 6, the toner 4 separates from the recording medium 3 and sticks around the magnet by the magnetic force of the electromagnet 1. Then, when the toner 4 is deposited around the blade 2, the magnet 1 is powered down and the toner is attracted and collected by a blower 7. Thus, the magnetic field of the electromagnet 1 is utilized for both demagnetization and toner cleaning, so the cleaning performance is improved and the burden on the blade 2 is relieved. Consequently, the life of the blade is prolonged and the deamgnetizing device becomes never dirty, thereby facilitating the maintenance. |
