HP 4550 Service Manual - Page 22

Site requirements The printer must be kept in a proper location to maintain the performance level that has been set at the factory. In particular, be sure that the environment adheres to the specifications listed in this chapter. Below are recommendations for the printer location and placement. Make sure the printer has the following:
a well-ventilated, dust-free area
a hard, level surface (not more than a 2° angle): • for the HP Color LaserJet 4500 and 4500N, the surface must support 51 kg (112 lb) • for the HP Color LaserJet 4500DN, the surface must support 77 kg (169 lb) • for the HP Color LaserJet 4550 and 4550N, the surface must support 51 kg (112 lb) • for the HP Color LaserJet 4550DN and 4550HDN, the surface must support 77 kg (169 lb)
a level surface that supports all four corners of the 500-sheet paper feeder
a constant temperature and humidity (Do not install near water sources, humidifiers, air conditioners, refrigerators, or other major appliances) Make sure to keep the printer:
away from direct sunlight, dust, open flames, or ammonia fumes.
away from the direct flow of exhaust from air ventilation systems.
away from walls or other objects. There must be enough space around the printer for proper access and ventilation. See Figure 1-5 on page 21. 20 Printer description C7085-90921