Your prints are coming out with faint bands, a grey haze, or that one stubborn streak down the page. Swapping toner didn't fix it because the problem isn't the toner. It's the drum. The HP 660A imaging drum, model W2004A, is the component that actually contacts your paper and transfers the image. Once it wears, no amount of fresh toner saves the output. Pull the old drum, seat this one, and your pages go clean again. One part, one fix, done
| brand | HP |
| model_number | W2004A |
| series | 660A |
| type | Imaging Drum Unit |
| category | Printing > Ink Toner & Ribbons |