Step 1: Identify the tool's function. The question asks for the specific name of a hand roller used to apply ink in printmaking.
Step 2: Recall printmaking terminology. The correct term for this tool is a Brayer. A brayer consists of a handle and a roller, typically made of rubber or gelatin, and is used to roll out a thin, even layer of ink onto a plate or block. A burnisher is a tool used to smooth or polish a plate in intaglio printing.