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Need Windows 11 help?
Check the information on compatibility, upgrade, and available fixes from HP and Microsoft. Windows 11 Support Center

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Replace the toner cartridge in HP LaserJet MFP M139-M142 printers

Replace a low or empty cartridge in HP LaserJet MFP M140w, M141a, M141w, M141ca, and M141cw printers.

HP LaserJet MFP M139-M142 toner cartridge numbers
North America, Australia, and New Zealand	Europe	Mexico, ISE, Hong Kong, Taiwan, Korea, and Singapore
HP 141A Black	HP 142A Black	HP 150A Black

Purchase ink or toner cartridges

Replacement ink and toner is available from HP and local retailers.

Go to the HP Store.
Select your country/region and language.
Click Ink & toner at the top of the page.
Follow the instructions to find and order the cartridges for your printer.

Install the replacement toner cartridge

Install a new cartridge in an HP LaserJet MFP M139-M142 printer.

Open the toner access door, and then remove the cartridge.
Remove the new cartridge from its packaging.
Remove the orange cover from the cartridge.
Grasp the cartridge by its sides, and then rock the cartridge side to side five or six times to evenly distribute the toner.

CAUTION:
Do not touch the imaging drum surface. Fingerprints can cause print quality problems.
Bend the orange tab until it snaps, and then pull to remove the sealing tape from the cartridge.
Align the cartridge with the tracks inside the printer, push in until firmly seated, and then close the toner access door.
Recycle the toner cartridge and all packing material.