Review on 🖨️ Uniwork Compatible Toner Cartridge Replacement for HP 78A CE278A - High-Quality Printing for Laserjet Pro P1606dn, M1536dnf, P1566, P1560, P1606, M1536 Printer Tray (2 Black) by Noah Smith

I should have paid attention to the negative reviews but the price was so good! From the start, this cartridge leaked ink in my printer and there were stains on the paper I was trying to print. In my years of using outrageously expensive HP toner, I have never had an ink leak from this printer! Unfortunately I was printing diplomas for a class I teach and had to go through three times as many diplomas to clean the printer in between and also use an eraser on all the papers hoping I could get rid of the smudges. It was a disaster. I will attach a photo of the dark spots as well as one of the cotton swabs I tried to use to clean the ink.