About X&O Professional Recycle and Compatible toner cartridge and copier manufacture: Over 10 years' experience in Xerox, OKI, Ricoh, Kyocera NEC, Epson cartridges and copier supplies since 2003. 20 R&D and after-services team. And over 3000 square meter factory in Zhuhai, China. Over 50,000 Pieces production capacity. Covering 25 countries and areas with 300 business partners all over the worlds. Professional testing machines and 70 sets plastic molds. Focus on Quality Control system. Certificated by STMC, CE, and ISO9001. If you are not satisfied with our product, we will double compensate for it.