| 摘要 |
A width-adjustable sheet tray includes a sheet supporting part, left and right rollers, a ring-shaped flexible transmission component, and left and right guiding components. The supporting part has left and right guiding slots. The left and right rollers are attached to a backside of the supporting part. A line connecting rotation centers of the left and right rollers is defined as a central line. The transmission component surrounds the left roller and the right roller and includes first and second portions on opposite sides of the central line. The left guiding component passing through the left guiding slot is fixed to the first portion. The right guiding component passing through the right guiding slot is fixed to the second portion. Thus, the left and right guiding components can be moved close to and away from each other through the transmission component so as to hold and guide the sheets.
|
