| 摘要 |
A transmission mechanism that can be applied in a document camera is disclosed. The transmission mechanism includes a first roller, a second roller, a first lever and second lever. The first roller and the second roller rotate about individual axes. Ends of the first lever are pivoted about the axis of the first roller and the axis of the second roller, respectively; and ends of the second lever are pivoted about a shift point of the first roller and a shift point of the second roller, respectively. The first lever and the second lever are uncrossed.
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