Review on 🖨️ HP 11X Q6511X Toner Cartridge: Black High Yield for Printing Excellence by Mike Groover

I purchased (2) of these toner cartridges for my HP 2420D printer. The first worked for about 20 pages and then started creating dark horizontal lines on each page. The second only output completely black pages every time. Removing and reinserting the cartridges gave the same result. The new HP 6511 cartridge works great. This is pure junk and just doesn't work. Don't waste time and effort repacking, paying for shipping and trying to get a refund. Lesson learned. junk junk junk