With HP Sure Start, each printer regularly checks its operating code and repairs itself from attempted hacks. Whitelisting checks firmware during startup to help ensure it's authentic, good code - digitally signed by HP. Run-time intrusion detection continually monitors activity to detect and stop attacks, then automatically reboots. Speed through tasks and save paper. Print two-sided documents nearly as fast as single-sided. Produce sharp text, bold blacks, and crisp graphics with precision black toner. Help retain the Original HP quality you paid for with anti-fraud and cartridge authentication technology.