Method for engraving, marking and/or inscribing a workpiece with a laser plotter and laser plotter for the same

A laser plotter apparatus, comprising:

• a processing area for positioning a workpiece, the processing area having:
• at least two laser beam sources in the form of lasers, the at least two laser beam sources being configured to alternately transmit a laser beam;
• a carriage;
• a focusing unit arranged movably on the carriage;
• one or more deflection elements positioned to deflect the laser beam from the at two laser beam sources towards the focusing unit;
• and
• a control unit for controlling at least one or more of:
• a position of the workpiece, the at least two laser beam sources, displacement of the carriage, and movement of the focusing unit along the carriage, wherein the control unit is configured to control the position of the workpiece in relation to the laser beam being focused by the focusing unit through the displacement of the carriage such that the workpiece is processed line-by-line, wherein a sequence control adapted to a quality of engraving in which parameters for a defined ratio of a spot variable of the laser beam on the workpiece to a line distance and an engraving control of the lines to be processed are determined and carried out by the control unit, wherein movement of the focusing unit along the carriage is controlled corresponding to the defined parameters of the sequence control, and wherein the control unit is operable to control an engraving sequence to be performed block-by-block in a unidirectional manner with at least two blocks being processed alternately and with an engraving direction changing between opposite directions for the at least two blocks.