To surely prevent error triggers by automatically turning on and connecting a machine when a turn-on connection signal appears twice in succession and also specific conditions that are automatically checked by a machine control part are additionally satisfied.
While a physical part of an operator's body is close, a machine is turned on and connected by using a sensor or a sensor area which outputs a turn-on connection signal. In a method for this, when a turn-on connection signal appears two times in succession and also the two following conditions that are automatically checked by a printer controlling part 4 are additionally satisfied, the machine is automatically is turned on and connected. That is, about a time condition, a time interval that is decided beforehand between a 1st occurrence point of time of a turn-on connection signal and a 1st time interval that is decided beforehand is 1s (second). Also, selection is made so that the 1st time interval that is decided beforehand may be 2s. As a result of this, an error trigger is revented, and advantageous compromise solution between safety and facility of an operation especially in a printer is made.
PRITSCHOW MICHAEL
WEIL STEFAN
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