Description
Niimbot B21 Remembrance Printer With User’s Manual
Description
| Indicator | Status | Description |
| White light | Flashing | Firmware updating or other temporary status |
| White light | Steady light | Turning on the machine |
| Green light | Slow flashing | Charging finished |
| Green light | Flashing | Printing |
| Green light | Steady light | Bluethooth connected |
| Red light | Flashing | Malfunctions including but not limited to cover open, lack of paper, etc |
| Red light | Steady light | Charging |
| Buzzer | buzzing | It happens when turning on and off the printer |
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