RGH Products(TM) Remanufactured Toner Cartridge Compatible With Canon PC330/ 770 Series, PC-140, PC-150, PC-160, PC-170, PC-300, PC-745, PC-770, PC-775, PC-785. Replacement for Model E40. Remanufactured by us in the USA at our Office in Baltimore,MD. 2 23 Years in business remanufacturing toner Cartridge 3 Highly Skilled Laser Printer Technician Oversees Operation 4 Every Toner is Post Tested Before Being Packaged 5 100% Statisfaction Guarantee- We fully warranty all of our Remanufactured toners for 2 Years or until empty.