Specifications Part no. 50F3U0E Print Technology Black & White Laser Printer Yield Value 200001 Lexmark Cartridge Collection Program Yes Average Continuous Cartridge Yield in one-sided (simplex) mode up to 20,000 standard pages Declared yield value in accordance with ISO/IEC 19752. Cartridge Replacement: Cartridges are designed for use in a specific geographical region. See www.lexmark.com/regions for… Continue reading Lexmark MS/MX510,511,610,611 Corporate 20K Toner Cartridge