What power adapter and electrical specifications does the HP Photosmart 7520 require?
The HP Photosmart 7520 uses power adapter model 0957-2304, with an input voltage of 100-240 Vac, an input frequency of 50/60 Hz, and a maximum input current of 0.9A. The manual states you should use this printer only with the power adapter supplied by HP. (Page 3)
From the official HP Photosmart 7520 E All-in-One Printer manual, page 3
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