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HP Customer Support - Knowledge Base

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HP Officejet Pro X451/X551 Printer series - Specifications

Physical specifications

Product
Height
Depth
Width
Weight
HP Officejet Pro X451 MFP series
380 mm (15.0 inches)
399 mm (15.7 inches)
513 mm (20.2 inches)
With supplies: 23.7 kg (50.0 lb)
Without supplies: 16.7 kg (16.8 lb)
HP Officejet Pro X551 MFP series
414 mm (16.3 inches)
399 mm (15.7 inches)
513 mm (20.2 inches)
With supplies: 23.7 kg (50.0 lb)
Without supplies: 16.7 kg (16.8 lb)

Acoustic emissions

Operation
LwAd-mono (B)
LwAd-color (B)
Notes
Print
6.9
6.8
-
Copy
7.1
6.9
ADF models
Scan
6.9
6.7
ADF models

Environmental specifications

Feature
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
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.

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Country/Region: Flag Malaysia

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