Eco Settings; Auto Reduction Setting - Star Micronics TSP100IIIU Software Manual

4.5. ECO Settings

Click the ECO Settings tab on the left side of the dialog box.
The contents displayed differ depending on the connected model.

4.5.1. Auto Reduction Setting

This function reduces the overall size of the printing.
However, to prevent any scanning errors, the size of printed barcodes is not reduced even if the
reduction settings are selected.
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Software Manual