| 摘要 |
Sheet feeder for suppling the cylinder (14) of an office machine with paper sheets from a pile (24) stored in a magazine (20). The device may be adapted to the office machine; the driving of a debundling roller (28) which is friction-driven and applied against the paper stack (24) by the cylinder of the typewriter (14) is such that, when the cylinder of the typewriter (14) rotates in the direction opposite to the paper introduction rotation, the debundling roller (28) is driven in the paper introduction direction. To prevent the debundling roller (28) from hindering the paper introduction in the cylinder of the typewriter (14), the magazine (20) is pivotingly engaged with a control cam (34). The control cam (34) is driven by the cylinder of the typewriter (14) so as to push back the magazine (20) against the debundling roller (28) when the cylinder of the typewriter (14) rotates in the direction opposite to the paper introduction rotation direction, and so as to push the magazine away from the debundling roller (28) when the cylinder of the typewriter (14) rotates in the paper introduction direction. |
