The New Compatible Canon E30 Toner Cartridge-Black is made of recycled, cleaned and refurbished cartridges and 100% toner refilled with advanced technique. It is re-manufactured with the highest standards of reliability and compatibility. We guarantee our products without defects in materials and workmanship. If the product is found to have problems under normal circumstance, demand for a return is acceptable. Meeting standards of ISO 9001&14001, the products is of high quality and environmentally friendly.