Specifications

Maximum Label Length
The ^ML (Maximum Label Length) instruction lets you adjust the
maximum label length via ZPL.
The format for the ^ML instruction is:
^MLa
where
^ML = Maximum Label Length
a = Maximum Label Length in Dot Rows
NOTE: In order for calibration to work properly, you
must set the maximum label length equal to or greater
than your actual label length.
Default value:Last permanently saved value
ZPL II COMMAND REFERENCE 289
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^ML