| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent occurrence of problems caused by contact defects of a roller against a disc-shaped recording medium. <P>SOLUTION: A disc drive device includes a recording and playback unit that performs recording or playback of an information signal on a disc-shaped recording medium having a printing surface and a recording surface; a printing head that performs printing on the printing surface of the disc-shaped recording medium; a roller that is separated from or comes into contact with an outer circumferential surface of the disc-shaped recording medium and rotates the disc-shaped recording medium by being rotated while in contact with the outer circumferential surface; a spring member that biases the roller in an axial direction of the roller; and a position restricting member that has a restricting section against which the roller biased by the spring member is pressed and performs the positioning of the roller in the axial direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
