All our Q5949X premium toners are made to highest standards and carry the ISO9001 worldwide quality certification. The Q5949X black prints approx. 6000 pages at 5% average coverage. LaserJet 1320,LaserJet 1320n,LaserJet 1320nw,LaserJet 1320tn,LaserJet 3390,LaserJet 3392.
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