Maintain your scanner's high-quality performance-extend the life of the scanner with a replacement roller and separation pad. Reduce interruptions caused by normal roller and separation pad wear. Easy installation gets you back to business quickly. HP Scanjet 7500 and 8500 fn1 users who want to keep their scanner in good working condition and extend the life of the scanner. Keep your scanner in top condition Maintain your scanner's high-quality performance-extend the life of the scanner. Reduce interruptions caused by normal roller wear This replacement roller kit reduces interruptions caused by normal assembly wear. Get back to business quickly-easy installation Get back to business quickly-this replacement roller is easy to install.