ZPL commands
^MD · Media Darkness
Changes the print darkness relative to the darkness set on the printer - for darker/lighter output.
Changes the print darkness relative to the darkness set on the printer - for darker/lighter output.
Parameters
^MDa- a: Relative darkness change (−30 to 30, in steps of 0.1); added to the current value (control panel or ~SD)
Example
^XA
^MD5
^FO50,50^A0N,30,30^FDHello^FS
^XZ
Tip
Too dark = smeared output and faster printhead wear. Reduce the speed first.