| 摘要 |
A printout device for calculators and the like includes a plurality of print segments, each encased in elastomer and embedded in a rigid block with the lower, indicia forming ends flush with the lower surface of the block. The upper end of each print segment is provided with a diametrically extending slot. Disposed above each print segment and axially aligned therewith is an electromagnetic driver element which is provided with a diametrically extending bar or key projecting from the lower surface thereof. With the electromagnet unactuated, downward pressure applied to the upper surface of the block will drive the key into the aligned slot so that no force will be transmitted to the printing segment. Actuation of the electromagnet will cause the key to be attracted to the upper extremities of the printing segment as it approaches it, causing the key to misalign with the slot and impinge on the upper surface of the printing segment. The force thus transferred drives the segment to print on a printing surface subjacent to the block.
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