Genuine OEM HP LaserJet 4240n Toners

The HP LaserJet 4240n uses HP 42A black toner, part number Q5942A. The current selection keeps the printer's toner choice to one cartridge and one capacity.

Toner Buzz carries genuine HP 42A toner for this model. Since there is no pack or second capacity to compare, the supply decision stays focused on the cartridge the printer uses.

Guaranteed fit for HP LaserJet 4240n

The products below are genuine OEM HP Supplies made for the HP LaserJet 4240n.

  • OEM HP Supplies
  • Fits HP LaserJet 4240n
  • 1 products for this printer

Standard Yield Products

Standard-Yield Cartridges for HP LaserJet 4240n

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