| 摘要 |
PURPOSE:To simplify the construction of a selecting and changing-over mechanism and contrive to reduce the size and weight of a printer, by a method wherein the holding member of a selecting mechanism for changing over the output of a converting mechanism is maintained in one of two stable conditions, and selection of a type and printing are conducted by alternately changing over the first and second outputs from one to the other. CONSTITUTION:A selecting mechanism 1 is provided with a holding member 12 for alternately catching and holding two outputs from a converting mecahnism, and is provided also with an operating member 20 for maintaining the holding member 12 in either one of a stand-by condition and an operative condition. The condition wherein the holding member 12 is transferred from the stand-by condition into the operative condition by an electromagnetic triggering member is maintained by the operating member, the holding member 12 is returned from the operative condition to the stand-by condition by a return-driving member 11d when printing and shifting-up operations are completed on the second output side connected to a printing mechanism, the second output is caught and held again, and the holding member 12 is maintained in the stand-by condition by the operating member 20. Accordingly, it is enabled to change over between selection of the type and printing, and it can be contrived to reduce the size and weight of the printer. USE:Pocketable electronic calculators. |
