Electrical specifications
Item 110-volt models 220-volt models
Power supply 115 to 127 V (+/- 10 %) 220 to 240 V (+/- 10 %)
50 to 60 Hz (+/- 2 Hz) 50 to 60 Hz (+/- 2 Hz)
Power consumption (typical)
During printing (color) 224 W (average) 217 W (average)
During printing (black and
white)
400 W (average) 400 W (average)
During standby 15 W (average) 19 W (average)
Off mode 0 W (average) 0 W (average)
Heat output
Idle 51 BTU/hr 61 BTU/hr
Minimum recommended circuit
capacity
12 A 6 A
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 product warranty.
Environmental specifications
Recommended
1
Operating
1
Storage
1
(printer and print
cartridge)
Temperature
20° to 27° C
(68° to 81° F)
15° to 32.5° C
(59° to 90.5° F)
-20° to 40° C
(-4° to 104° F)
Relative humidity 20 to 70 percent 10 to 80 percent 95 percent or less
1
Values are subject to change. See http://www.hp.com/support/clj2550 for current information.
Acoustic emissions (HP color LaserJet 2550 series)
Sound Power Level
Declared per ISO 9296
1
Printing (20 ppm)
L
WAd
= 6.6 Bels (A) [66 dB (A)]
SPL-Bystander Position
Declared per ISO 9296
1
Printing (20 ppm)
L
pAm
= 52 dB(A)
1
Values are subject to change. See http://www.hp.com/support/clj2550 for current information.
138 Appendix C Specifications ENWW
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