Go to your print queue, click the Printer menu tab, and ensure is unchecked. Faint, Blurry, or Low-Quality Printing Open the printer driver advanced properties. Navigate to Graphics or Print Density .
: Your paper might be upside down. Thermal paper only prints on one side. Flip the paper and try again. i--- Thermal Printer Pos-9210-l Driver Download
: A "Linux System Printer Driver" is provided for broader compatibility. Go to your print queue, click the Printer