摘要 |
PURPOSE:To always obtain an image having high image quality, by storing the number of transfer sheets and feeding back the optimum polishing quantity to adjust polishing quantity. CONSTITUTION:A signal outputted at every transfer is counted by a counter and the count value thereof is grasped by a microcomputer. The optimum polishing quantity experimentally calculated from the relation between the number of transfer sheets and the total number of transfer sheets is preliminarily stored in the microcomputer to be sent to a polishing means as a feedback signal. A recording needle 201 is brought into contact with a lapping film 202 at a certain angle and this polishing angle is determined on the basis of a position where a positioning shaft 204 is brought into contact with a substrate 203. The lapping film polishes the recording needle and the substrate to be taken up by a take-up core 205. |