4.2 About the Battery Remaining Amount 4.2.1 The battery remaining amount This printer has a battery to supply power. The battery has four statuses: *When an AC adapter is connected to the printer, if the power is turned on, the “battery LED condition” is always Off and if the power is turned off, the charging is being performed and the “battery LED condition” is On. 4.2.2 The method to confirm the battery status The battery status can be confirmed by every control method. 4.2.2.1 ESC/POS command The beeper function can be operated by commands. See the “ESC/POS Application Programming Guide“ for details. 4.3 Beeper function This printer has a beeper function.
The beeper beeps automatically when the following conditions occur. The automatic beeping enabled/disabled is switched by a memory switch. See “Memory Switches” (page 2-15) for details. ❏ The remaining battery charge is low ❏ Roll paper is out ❏ Printer has an error ❏ An available host device cannot be found (default is set to disabled). In addition, the buzzer can be turned on using commands from the application. The various control methods are explained in the section below. 4-2 Application Development Information Rev.
C Battery Status The battery LED condition Description Level H (High) Off The remaining battery charge is between 100% and approximately 50% when the amount of difference between the full battery and level L is 100%. Level M (Medium) Flashing The remaining battery charge is between approximately 50% and level L when the amount of difference between the full battery and level L is 100%. Level L (low) On The battery needs to be replaced or recharged because the remaining battery charge is low. Level S (Serious) On The printer will not operate because the remaining battery charge is too low.