Printer space requirements
HP recommends that 30 mm (1.81 in) be added to the printer dimensions provided in this chapter to make
sure there is suicient space to open doors and covers, and to provide proper ventilation. See Printer
dimensions M426 and M427 on page 172 and/or Printer dimensions M402 and M403 on page 174.
Power consumption, electrical specications, and acoustic
emissions
See www.hp.com/support/ljM402, www.hp.com/support/ljM403 or www.hp.com/support/ljM426MFP,
www.hp.com/support/ljM427MFP for current information.
CAUTION: Power requirements are based on the country/region where the printer is sold. Do not convert
operating voltages. This will damage the printer and void the printer warranty.
Operating-environment range
Table A-1 Operating-environment specications
Environment Recommended Allowed
Temperature 17.5° to 25°C (63.5° to 77°F) 15° to 32°C (59° to 90.5°F)
Relative humidity 30% to 70% relative humidity (RH) 10% to 80% RH
Altitude Not applicable 0 to 3048 m (0 to 10,000 ft)
176 Appendix A Printer specications ENWW