Chapter 1 Product Overview Parts Name and Function Manual cutter Roll paper cover 1 Cover open lever Power switch cover Control panel Power switch Power Switch Turns the printer on or off. The marks on the switch: ( / ) Before turning on the printer, be sure to check that the AC adapter is connected to the power supply. CAUTION Before turning the printer off, it is recommended to send a power-off command to the printer. If you use the power-off sequence, the latest maintenance counter values are saved. (Maintenance counter values are usually saved every two minutes.) For detailed information about ESC/POS commands, see the ESC/POS Application Programing Guide. 13