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Amazon.com: Original HP 42X Black High-yield Toner Cartridges (2-pack) | Works with HP LaserJet 4240, 4250, 4350 Series | Q5942XD : Electronics
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Universal Extended Yield Toner Cartridge for HP Q1338A/Q1339A/Q5945A/Q5942X (HP 38A/39A/45A/42X) – The Printer Depot
HP 42X - High Yield - black - original - LaserJet - toner cartridge (Q5942X) - Q5942X - Toner Cartridges - CDW.com
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