Faint horizontal lines. A grey haze over your black text. That drum-warning light you've been ignoring for a week. Your C831N's black drum unit is done. This genuine OKI replacement slots in where the old one was and your prints go back to clean, solid black. One swap, problem gone
| brand | OKI |
| colour | Black |
| type | Drum Unit |
| compatible_model | OKI C831N |
| category | Printing > Ink Toner & Ribbons |