You're mid-document, the page count is climbing, and that toner light just flickered on. Annoying. This White Box Lexmark 523H black cartridge is the specific part your printer is flagging. Same slot, same fit — you pull the old one, drop this in, and the queue clears out. No compatibility cross-reference needed if your machine says 523H. If it doesn't, call us. We'd rather spend two minutes confirming than have you return a cart that wasn't the right one
| brand | White Box |
| model | 523H |
| type | Toner Cartridge |
| colour | Black |
| category | Printing |
| subcategory | Ink Toner & Ribbons |
| compatible_brand | Lexmark |
