Office Basics HP LaserJet P2015 toner high capacity black Q7553X. Ref: LS-OB-HP88-K0. If you want a cartridge that will provide you the same high quality as a named brand cartridge but without paying the high price then the Office Basics HP P2015 Black Toner Cartridge is perfect for you. This cartridge gives the same sharp lines and high defined images, providing you with quality prints time after time. This toner cartridge is also environmentally friendly, being made out of at least 90% recycled material.