HP recommends that the number of printed pages per month be within the stated range for optimum device performance, based on factors including supplies replacement intervals... depending on scan resolution, network conditions, computer performance, and application software.) Scan speed (default) Up to 57 ppm Scanner features Yes Automatic paper sensor No... Power and operating requirements Power supply Input voltage 110 to 127 VAC (+/- 10%), 60 Hz (+/- 2 Hz), 12 A; 220 to 240 VAC (+/- 10%), 50 Hz (+/- 2 Hz), 6 A Power consumption 960...