134X Black Toner Cartridge (with Chip) Replacement Compatible with HP 134X Toner Cartridges W1340X 134A for 209dw MFP M234dw M234sdw Printers Ink | High Yield, 2 Pack, Black

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/ Message of Cartridge Low might be popped up every time you start printing, please ignore it since we are applying transferred chip/ Cartridge might not be able to show the print pages
NOTICE: Printer may show error messages to discourage users from using 3rd party toner, just please press "OK" button or ignore it to continue printing
Compatible Printers: Works for M209dw MFP M234dw M234sdn M234sdw printer
What's in the box: 2 packs of 134X black high-yield toner cartridges