Wasp Thermal Print Heads and Cleaning Pens Extend the life of your thermal print head though regular cleaning with the thermal cleaning pen. Specially designed to assist in the removal of buildup resulting from the thermal printing process. Wasp Barcode offers a full line of replacement thermal print heads designed specifically to work with our full line of barcode label printers Wasp's line of thermal print heads includes replacement heads for: WPL25/WHC25 WPL205/WPL305 WPL304 (203 dpi) WPL304 (300 dpi) WPL406 (203 dpi) WPL406 (300 dpi) WPL606 WPL608 WPL610 WPL612 (203 dpi) WPL612 (300 dpi) WPL612 (600 dpi) In addition to replacement heads, Wasp offers a thermal cleaning pen, designed to extend the life of both original and replacement heads. These pens are special designed to assist in the removal of buildup resulting from the thermal printing process and should be used every time you change your printer ribbon or labels. Consistent use of this product will extend the life of your print head, reduce wear on your rollers, and helps to prevent wrinkling and tearing of your thermal ribbon.Wasp Thermal Print Heads and Cleaning Pens Extend the life of your thermal print head though regular cleaning with the thermal cleaning pen. Specially designed to assist in the removal of buildup resulting from the thermal printing process. Wasp Barcode offers a full line of replacement thermal print heads designed specifically to work with our full line of barcode label printers Wasp's line of thermal print heads includes replacement heads for: WPL25/WHC25 WPL205/WPL305 WPL304 (203 dpi) WPL304 (300 dpi) WPL406 (203 dpi) WPL406 (300 dpi) WPL606 WPL608 WPL610 WPL612 (203 dpi) WPL612 (300 dpi) WPL612 (600 dpi) In addition to replacement heads, Wasp offers a thermal cleaning pen, designed to extend the life of both original and replacement heads. These pens are special designed to assist in the removal of buildup resulting from the thermal printing process and should be used every time you change your printer ribbon or labels. Consistent use of this product will extend the life of your print head, reduce wear on your rollers, and helps to prevent wrinkling and tearing of your thermal ribbon.