Brother TD-2120N - Manual (Page 58)

P-touch Template 2.0 Command Reference
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7. Control Command Details
(5) Battery level information
Flag Mask Meaning
Bit 0 00h Full battery
Bit 1 01h Half battery
Bit 2 02h Low battery
Bit 3 03h Changing required
Bit 4 04h AC adapter in use
^VR Retrieve version information
ASCII: ^ V R
Decimal: 94 86 82
Hexadecimal: 5E 56 52
Parameters
None
Description
 Retrieves the version information for the printer as a 16-character text string.