| 摘要 |
PURPOSE:To stabilize the magnetization pattern after latent image writing in the case of multiple heads by equipping a reading head separately from a writing head or equipping a reading mechanism to the writing head. CONSTITUTION:The reading (reproducing) head 3 is disposed after formation of the latent image by the writing head 2. Namely, a recording drum 1 rotates in an arrow direction and the magnetic latent image is recorded on the recording drum 1 by the writing head 2. The leak magnetic flux is then reproduced by the reading head 3. The various intensities of magnetization quantities are fed back to the writing head 2 and after the current quantity is adjusted, the latent image is erased by an erasing head 4, then the latent image is again written. The specified writing pattern intensity of the plural heads is thereby obtd. |
