| 摘要 |
<p>A method for determining concentric placement of an optical disk about an axis prior to processing, comprising the steps of; sensing the disk location with a plurality of non-contact sensors positioned radially about the axis; initiating the processing in accordance with the plurality of non-contact sensors indicating the concentric placement of the disk about the axis; and, inhibiting the processing in accordance with any one of the plurality of non-contact sensors indicating an absence of the disk.</p> |
