Check the remaining ink or toner level (Linux) | Brother
Brother printer MFC-L2710DW stopped using perfectly working and almost full third party toner after firmware upgrade. Error message "toner exhausted", with gauge showing it being at 90% fill. : r/assholedesign
BROTHER MFC-J3540DW Inkjet Printer – PC Express
Handleiding Brother MFC-L8690CDW (pagina 737 van 764) (Engels)