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3.3 Inside of Paper Cover
(10) Paper feed roller
Feeds paper through the printing mechanism.
(11) Printing (thermal) head
Records print data on the thermal paper.
3.4 Buzzer
The built-in buzzer sounds in the following cases.
When low battery is detected (sounds 3 times)
When magnetic card was successfully read (sounds once)
When buzzer command is sent (the number of sounding times is
controllable)
(11)
(10)