Model Compatibility: Fits S1500, S1500M, N1800, and Fi-6110 devices as a direct replacement for the pickup roller separation pad. Part Number Match: Replaces part numbers PA03586-0001 and PA03586-0002 in identical form and function. Functional Purpose: Restores pickup roller separation pad for paper feeding and document handling. Specification Alignment: Matches the dimensional, material, and mounting specifications of the separation pad used in listed models. Installation Scope: Designed for straightforward replacement of the existing separation pad without modification to the device or other components.