Gprinter Gpl80180 Link -

: Standard models offer approximately 180mm/s , while high-end versions in the same series can reach 250mm/s .

Search on Google Scholar or IEEE Xplore for "thermal printer" + "ESC/POS" or "Gprinter" , though this specific model is unlikely to be in academic papers. gprinter gpl80180 link

Then it printed another line: