Not very many, probably less than 20 watts.
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A typical inkjet printer uses around 30-50 watts during operation, while a laser printer can range from 300-1000 watts depending on the model and type of printing being done.
A typical home printer consumes about 30-50 watts during operation. However, this can vary depending on the model and usage.
An average printer typically consumes around 30-50 watts during printing, and around 2-4 watts in sleep mode. The actual power usage can vary depending on the printer model and brand.
A typical ink-jet printer such as used at home would draw around 5 watts on stand-by and 25 to 35 watts while printing. A typical laser-printer such as used in an office would draw about 35 to 50 watts on stand-by and up to about 350 to 500 watts while printing.
Hoovers use 1000 - 2000 watts