1PCX Q7404-60029 Q7404-60024 Q7404-60025 ADF Hinge Assembly ASM ASSY-HINGE-HR for 500 MFP M525 M575 M521 CM4540 This ADF hinge assembly is designed to fit specific printer models including 500 MFP, M525, M575, M521, and CM4540.It serves as a replacement part for the hinge mechanism in automatic document feeders.The assembly proper alignment and movement of the ADF cover during scanning operations.It is engineered for straightforward installation and compatibility with the specified devices. This product is an aftermarket solution.Brand names are mentioned only to clarify compatibility with specific models.