My Brother DCP-L2550DW is making unusual noises during printing, what should I check?

Unusual noises can indicate internal issues like foreign objects inside the printer, a worn-out gear, or a problem with the paper feeding mechanism. Check for any obstructions in the paper path. If the noise persists and you can't identify the source, it might be a mechanical failure requiring professional service. Avoid forcing the printer if it's making grinding or loud clicking noises.