Buy the HP 42X (Q5942X) (MSE 02-21-4217) black micr toner cartridge with 100% confidence! Low Prices and Large Selection on Quality Products. Save up to 50% on the HP 42X (Q5942X) (MSE 02-21-4217) replacement micr toner cartridge versus their original OEM counterparts. Easy to Use and Professional Service. Find all the supported laser printers for the HP 42X (Q5942X) (MSE 02-21-4217) micr toner cartridge in the "Supported Models" section. Return Policy : Contact Manufacturer. About the HP 42X (Q5942X) (MSE 02-21-4217) black micr toner cartridge: HP 42X (Q5942X) (MSE 02-21-4217) Type: Replacement A HP 42X (Q5942X) (MSE 02-21-4217) replacement micr toner cartridge (also known as aftermarket micr toner cartridge) was produced by a third party - not the printer"s original manufacturer. HP 42X (Q5942X) (MSE 02-21-4217) replacement cartridge has been designed to meet the original equipment manufacturer"s (OEM) specifications, so you can be assured of a quality product. This results in significant cost savings over OEM products. HP 42X (Q5942X) (MSE 02-21-4217) Yield: 20000 A 20000 yield for the HP 42X (Q5942X) (MSE 02-21-4217) means that at 5% coverage (5% of a page is printed on), this micr toner cartridge will yield ~20000 printed pages.