ab Toner Cartridge (with Chip) Replacement for HP 134A W1340A / 134X W1340X — Compatible with Laser M209dw MFP, M234dw, M234sdn, M234sdw (Black, 2-Pack)

DO NOT UPGRADE: Disable automatic updates and avoid manually triggering upgrades to reduce firmware upgrade risks. NOTICE: Not compatible with E-series printers, like M234dwe M234sdne M234sdwe printer. A “Cartridge Low” message might appear each time you start a print job — please ignore this alert because a transferred chip is applied to the cartridge. The cartridge might not be able to show the print pages. NOTICE: Printers may display error messages intended to discourage third-party toner use. If you encounter such a prompt, press "OK" or dismiss it to continue printing. Compatible Printers: printer ink 134a works for M209dw MFP M234dw M234sdn M234sdw printer What's in the box: 2 packs of 134A mfp m234dw toner (Black) Wide Page Yield: Up to 1,100 pages per W1340A black toner cartridge at 5% coverage in A4 134A black toner cartridge: Replacement for 134A W1340A Toner Cartridges with chip also for 134x toner cartridges.