| 摘要 |
PURPOSE:To facilitate the assembly and adjustment of a scanner and to obtain stability during a run by using different members as a scanner main body part and a part to be guided on a guide rod and coupling those members with each other rotatably around a axis perpendicular to a scanning direction and a scanner lengthwise direction. CONSTITUTION:A scanner 40 consists of a bearing part 42 where a bearing 41 fitted onto the guide rod 10 is fitted and the main body 44 where a mirror 43 is fitted as different members. The bearing part 42 and main body part 44 are coupled which each other by a stepped screw or stepped calking pin 45 rotatably around the axis perpendicular to the scanning direction and scanner lengthwise direction. A slide member 21 is fitted on the reverse surface of the end part of the scanner main body part 4 at the opposite side from the side where the bearing part 42 is fitted. When the scanner is incorporated in a machine body, the scanner is aligned to a reference member such as a main body scale and coupled with a drive wire, thus obtaining the position relation of the scanner with the machine body unequivocally.
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