Printer prompt toner low indicates that the cartridge is not enough toner, add toner can be.
Tools/materials: HP M1136 MFP printer, toner bottle as an example.
1, first of all, flip open the top cover of the HP M1136 MFP printer.
2, after removing the cartridge in the HP M1136 MFP printer.
3, continue to open the left toner port of the cartridge in the HP M1136 MFP printer.
4. Next, insert the toner bottle and pour toner into the HP M1136 MFP printer cartridge.
5. Finally, put the toner-filled cartridge back into the HP M1136 MFP printer.