Site Requirements The following environmental specifications must be maintained to ensure the proper operation of the printer. Consider the following points before installing the printer: G Install in a well-ventilated, dust-free area. G Install on a hard, flat and continuous surface, with all four printer feet level. Do not install on carpet or other soft surfaces. G Ensure adequate power is supplied. Printer power requirements are listed in Table 1-5. (Uninterruptable power supplies (UPSs) are not recommended.) G Install where temperature and humidity is stable, away from water sources, humidifiers, air conditioners, refrigerators, or other major appliances.
G Install away from direct sunlight, open flames, or ammonia fumes. If the printer is placed near a window, make sure the window has a curtain or blind to block any direct sunlight. G Install with enough space around the printer for proper access and ventilation. G Install away from the direct flow of exhaust from air ventilation systems. Table 1-5.
Electrical Specifications for the HP LaserJet 4000 and 4050 Series Printers Volts Frequency Amperes Watts (typical) 100-127 VAC±10% 50/60 Hz ± 3 Hz 8 A printing = 330 W standby = 22 W PowerSave On = 20 W (EPA E NERGY S TAR ® ) 220-240 VAC±10% 50/60 Hz ± 3 Hz 4 A printing = 330 W standby = 22 W PowerSave On = 20 W (EPA E NERGY S TAR ® ) Site Requirements 1-9