Our company has the HP Color Laserjet 9500 MFP for over 8 years and has always replaced OEM parts. But one time, we try to save money on Toners and Fuser by using a remanufactured ones but the machine read these cartridges as if the cartridges has already been used even though it was new. Each toner, drum and fuser has a chip counter and once the counter reach zero you have to replace the cartridge or the machine doesn't work. The remanufactured ones probably didn't reset the counter. I've purchased remanufactured toners for other HP printers, but they leak and dirty the machine and take time away from your work to clean and if you don't clean it or get it serviced by a technician, the machine will get damage and would cost more time and money for repairs. Buy OEM parts only. It will same you time and headache.