Specifications

Label Home
The ^LH (Label Home) instruction sets the label home position.
The default home position of a label is the upper-left corner (position 0,0
along the x-axis and y-axis). This is the axis reference point for labels.
Any area below, and to the right of this point is available for printing. The
Label Home instruction changes this reference point. For instance, when
working with preprinted labels, use this instruction to move the reference
point below the preprinted area.
NOTE: This instruction will only affect fields that come after it. It
is suggested that this be one of the first instructions in the label
format.
276 ZPL II COMMAND REFERENCE
^L H