The RM1-5501 HP Paper Delivery Fan FM3 Assembly is a genuine replacement component designed specifically for the HP CLJ Enterprise CP4025 and CP4525 printer series. This fan assembly is part of the paper delivery system, helping to regulate airflow and ensure smooth paper handling during high‑volume printing tasks. Engineered to meet HP’s original equipment standards, the unit restores reliable paper feeding performance and reduces the risk of jams or misfeeds. It fits directly into the designated FM3 location, offering a straightforward installation for service technicians or experienced users seeking to maintain optimal printer operation.