MASTER DISK RECORDER

摘要

PURPOSE:To decrease the drop-outs or noise of a recorded master disk by providing an air nozzle at a position near an optical recording lens which moves relatively with a feed stage containing a rotary part which holds a record master disk. CONSTITUTION:A record master disk 1 is put on a turntable 2 and revolved with a fixed number of revolutions by a turntable motor 5 via a spindle 3. An air nozzle 9 is provided at a position near a recording lens 8, and the clean air is sent out through the nozzle to blow off the dust sticking on the disk 1 when the disk 1 passes under the nozzle 9. Thus the disk 1 can be kept clean and therefore the drop-outs or noises of the recorded disk 1 can be decreased.