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improper engraving of laser engraver

i recently bought a EleksMaker® EleksLaser-A3 Pro 5500mW Laser Engraving Machine CNC Laser Printer,while engraving any pictures of human faces it is producing un wanted lines on the faces( i.e.,the trace marks of the laser pointer while the pointer shifting from one part of the face to another.is there any provision for making the laser off while the pointer shifting from one location to another location of the drawing.

Depends on the firmware of the laser and how the task is processed.