The Xerox Colotech+ A4 Super Smooth Paper 100gsm White 500 Sheets guarantees the optimum performance from your printer in terms of quality, quantity and runnability. 100gsm thickness. Very high opacity makes it ideally suited for duplex printing. Superior whiteness allows for great contrast against the page. Incredibly smooth finish helps cut down on printer jams. High colour retention for high quality images on lower print settings.168 CIE whiteness.