| 摘要 |
Anti-tamper devices, control methods for electronic appliances having an anti-tamper device, and fiscal printers having an anti-tamper device are disclosed. A control method for an electronic appliance having an anti-tamper device includes detecting a removal sequence of a plurality of fasteners from the electronic appliance, comparing the specified removal sequence with the detected removal sequence, and, when the compared sequences differ, limiting one or more specific operations of the electronic appliance or causing the electronic appliance to execute one or more specific operations. A corresponding plurality of sensors can be used to monitor the installation states of the fasteners. The specified removal sequence can be changed based on time kept by a timer. The detected removal sequence and the specified removal sequence can be stored in memory and compared by a control unit. |
