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Premium MICR Q5942X (HP 42X) High Yield Black Toner Cartridge fully compatible with the HP LaserJet 4200, 4250, 4250dtn, 4250Dtnsl, 4250n, 4250tn, 4300 Series, 4350dtn, 4350Dtnsl, 4350n, 4350tn, 4345 MFP, 4345x, 4345xm, 4345xs, M4345 MFP, M4345x MFP, M4345xm MFP, M4345xs MFP. The use of compatible supplies does not void your printer warranty.
