HP 1500 chip HP 2500 chip HP 2550 smartchip Smartchip for HP 1500 HP 2500 HP 2550 HP 2800 HP 2840 HP 2850 Black Color, We now offer a smart chip replacement for the HP 1500 HP 2500 HP 2550 HP 2800 HP 2840 HP 2850. The smart chip offers the same functionality as the OEM, including supplies status information, toner low out indicator, and information regarding pages printed remaining. Replacing this smartchip for HP 1500 2500 2550 2800 2840 2850 cartridges is very easy, you just remove the old chip and place the new chip after you have refilled the cartridge