HP Officejet Pro X551 Printer series - Manual (Page 207)

Environmental specifications
Table C-3 Environmental specifications 1
Operating Transporting
Temperature 15° to 30° C
(59° to 86° F)
–40° to 60° C
(–40° to 140° F)
Relative humidity 20 to 80% 90% or less (non-condensing)
Altitude 0 to 3048 m (0 to 10,000 ft)
Tilt IMPORTANT: This printer is designed
to be used on a level surface. Operating
the printer when not level could result in
inaccurate printer messaging about the
amount of ink remaining in cartridges.
1 Values are subject to change.
ENWW Environmental specifications 193