HP Scanjet Enterprise 7000n, 7500/Flow 7500, and 8500 fn 1 Flatbed Scanners - Replace the rollers and the separation pad | HP® Customer Support
HP ScanJet Enterprise Flow 7500 L2725B Flatbed Scanner - Document, Duplex, 8.5 in x 34 in, 600 dpi x 600 dpi, up to 50 scans per minute, ADF ( 100 sheets ), USB 2.0 (L2725B#BGJ) at TigerDirect.com