HP Q1339A, Q5942 Compatible High Yield Toner- Black . Compatible with Q1338A, Q1339A, Q5942A, Q5942X, Q5945A - Black. Fits Models: LaserJet 4200, 4250, 4250DTN, 4250DTNSL, 4250N, 4250TN, 4300, 4300DTN, 4300DTNS, 4300DTNSL, 4300N, 4300TN, 4350dtn, 4350Dtnsl, 4350n, 4350tn, 4345 MFP, 4345x, 4345xm, 4345xs, M4345 MFP, M4345x MFP, M4345xm MFP, M4345xs MFP