HP J4550 User Guide - Page 163
Environmental specifications, Electrical specifications
UPC - 883585774142
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• Twain-compliant interface • Resolution: 1200 x 2400 dpi optical, up to 19200 dpi enhanced • Color: 16-bit per RGB color, 48-bit total (from glass); 8-bit per RGB color, 24-bit total (from ADF) • Maximum scan size from glass: 216 x 297 mm (8.5 x 11.7 inches) Environmental specifications Operating environment Operating temperature: 5° to 40° C (41° to 104° F) Recommended operating conditions: 15° to 32° C (59° to 90° F) Recommended relative humidity: 20 to 80% noncondensing Storage environment Storage temperature: -40° to 60° C (-40° to 140° F) Storage relative humidity: Up to 90% noncondensing at a temperature of 65° C (150° F) Electrical specifications Power supply Universal power adapter (external) Power requirements Input voltage: 100 to 240 VAC (± 10%), 50/60 Hz (± 3Hz) Output voltage: 32 Vdc, LPS (600 mA min) Power consumption 17 watts printing Acoustic emission specifications (print in Draft mode, noise levels per ISO 7779) Sound pressure (bystander position) LpAd 56 (dBA) Sound power LwAd 7.0 (BA) Acoustic emission specifications (print in Draft mode, noise levels per ISO 7779) 159