Review on 🖨️ ONLYU Compatible Toner Cartridge HP 78A CE278A 2-Pack for Laserjet Pro M1536 - Black Ink by Matt Morrison

ONLYU toner cartridge did not work. It prints sporadically dark and gray! Most of the page will be dull gray and difficult to read, although a few black letters will be added to give the false impression that "maybe it's just a coincidence and next time will be better". I even thought it might be the printer's fault. until I replaced that useless cartridge with another brand! I have invested time, money and paper in this product.