Your MC554's black output is fading, streaking, or showing a faint band down the page. That's the drum, not the toner. Swapping in a new cartridge won't fix it. This is the image drum unit your machine needs to get back to solid, clean black prints. 60,000 pages of average life means you swap it in once and forget about it for a long stretch
| brand | OKI |
| compatible_model | OKI MC554 |
| colour | Black |
| page_yield | 60,000 pages (average life) |
| type | Image Drum Unit |
| category | Printing > Ink Toner & Ribbons |
