Hp Pro K 550 printer
Hi marktrum,
This may sound kinda simplistic,but, hey, you never know. If you have digital multimeter available check the continuity of the power cord(if your not sure how to do this hit me back and I will explain), also check that the wall outlet is hot or check for tripped breakers. I hope this helps, if not, hit may back, we have other options.
Thanks for using FixYa.com
Sincerely, cyyyd7
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