| 摘要 |
A scanner casing includes a rectangular frame for supporting a transparent platform on which a document to be scanned is placed, and a housing for optical, electronic, and mechanical devices of the scanner. The frame is secured to the housing, without the need for screws, by engagement between respective positioning elements at one end of the frame and housing, and by engagement between respective hook-shaped elements and slots at the other end of the frame and housing.
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