Shenzhen ASTA Co., Ltd. was established in 2004 and is headquartered in Shenzhen. The industrial park covers an area of 35,000 square meters and currently has 710 employees and workers. Asta is a professional manufacturer of compatible toner cartridges and copier toner cartridges, which is specialized in R&D, production, sales and service. It is a national high-tech enterprise in China. Laser printers are suitable for consumers with a large number of printing needs, which is best suited for small and medium-sized businesses and schools that print large amounts of text and large amounts of text and color printing. If you only need to print black, we recommend that you buy our black toner cartridge for dell, ricoh, xerox, etc. Our color laser toner cartridges for brother and other brands are suitable for those who need to add some color to their daily documents. http://www.astasolution.com/toner-cartridge/ricoh-toner-cartridge/