The HP printing system is tuned to HP's ColorSphere toner, ensuring brilliant colour and consistencyFor consistency over the cartridge's life, HP Smart printing technology* in HP supplies and the printer relies on the unique properties of HP ColorSphere toner. As the system continually monitors and adjusts electrophotographic voltages inside the cartridge, patented additives enable continuous changes in particle charge for consistent quality on every page - even with shifting conditions like humidity. The dynamic toner adjustment process ensures the quality of every print-out, every time. HP ColorSphere toner achieves higher gloss for a dynamic range of bright coloursGloss enables a dynamic range of bright colours. With HP ColorSphere toner, your printing system achieves higher gloss, with brilliant, photo quality results. Improvements in toner particle design of HP's new colour toner accomplish uniform high gloss with improved melting and fusing technologies that enable superior toner release and flow onto t