Product number : 4ZB77A Acoustic power emissions (active, printing) : 6.5 B(A) Recommended operating humidity range : 20 to 70% RH (non-condensing) Recommended operating temperature range (Celsius) : 15 to 27°C Recommended operating temperature range (Fahrenheit) : 59 to 80.6°F Storage temperature range (Celsius) : -20 to 40°C Storage temperature range (Fahrenheit) : -4 to 104°F Environmental specifications : Mercury free Memory : 64 MB Maximum Memory : 64 MB Memory card compatibility : None Input capacity : Up to 150 sheets Standard input capacity (envelopes) : Up to 10 Output capacity : Up to 100 sheets Media sizes supported (metric) : A4; A5; A5(LEF); B5 (JIS); Oficio; Envelope (DL, C5); 76 x 127 to 216 x 356mm Media sizes supported (U.S. standard) : Letter; Legal; Executive; Oficio 216x340mm, Oficio 8.5x13 in, Envelope (No.10, Monarch); 4x6 in Media sizes, custom (metric) : 76 x 127 to 216 x 356 mm Media sizes, custom (U.S. standard) : 3 x 5 to 8.5 x 14 in Media types Plain, Thick, Thin, Cotton, Color, Preprinted, Recycled, Labels, CardStock, Bond, Archive, Envelope Media weight supported (metric) : 60 to 163 g/m² Media weight supported (U.S. standard) : 16 to 43 lb Maximum dimensions (W x D x H, metric) : 331 x 350 x 248 mm Maximum dimensions (W x D x H, U.S. standard) : 13.03 x 13.78 x 9.76 in Weight (metric) : 41.6 kg Weight (U.S. standard) : 9.17 lb Energy savings feature technology : HP Auto-On/Auto-Off Technology; Power save Power supply type : Internal (built-in) Power Supply Power supply : 110-volt input voltage: 110 to 127 VAC, 50/60Hz and 220-volt input voltage: 220 to 240 VAC, 50/60Hz Power consumption : 320 watts (Active Printing), 33 watts (Ready), 1.1 watts (Sleep), 0.2 watts (Manual off), 0.2 watts (Auto off/Manual on)