Review on 🖨️ HP 11A Q6511A Toner Cartridge - Reliable Black Ink for Quality Printing by Joseph Swanson

I bought this toner cartridge for an old HP 2420. After installation, the printer printed pages with horrible lines. Since I didn't really know the problem (actually it could be my old printer), I bought a SECOND cartridge. SAME PROBLEM! A very helpful printer seller sent me a third replacement. My printer is finally working again. My compliments to GTPRINTERS. WARNING: IF YOU BUY THIS PRODUCT, INSPECT IT IMMEDIATELY AND RETURN IT FOR A REFUND QUICKLY!