| 摘要 |
A device has a pivoted lever (24) for detecting a near end state of a roll of paper, and the lever (24) is held at a first position by the weight of a roll of paper, but is resiliently biased toward a second position by a spring (32). When the roll of paper does not have a core, and when the weight thereof falls to a predetermined value, the lever is moved from the first position to the second position due to a resilient force of the spring (32). When the roll of paper has a core, and when a diameter thereof is reduced to a predetermined value, the lever (24) receives the roll of paper in a recess (34) formed therein, and is moved from the first position to the second position due to a resilient force of the spring (32). When the lever is moved to the second position, this is detected by a suitable detecting element (40). Thus, the detector can detect the near end state of the roll of paper without regard to whether the roll of paper has a core or not. <IMAGE> |
