HP 42X Black MICR Toner Cartridge (Q5942X), High Yield 

MICR Toner specifically designed for Check Printing

• Yields up to 20,000 pages
• The HP 42X Black toner cartridge is not compatible with LaserJet 4240n printers
• Save 25% per page when you buy this HP 42X High Yield Black Toner Cartridge instead of the standard cartridge-ideal for high-volume printing
• Compatible cartridges are manufactured to meet the original specifications and performance standards, offering you premium quality at an affordable price every time. In order to maintain high quality, compatible cartridges are made by third party manufacturers from new and some recycled components. They are tested rigorously to assure optimal performance