The lights in my house go in amd out when this printer goes on

First, how cheap is Brothers? They do not include a needed USB Cable with this printer. That is eye-opening. But even more important - When I put this printer on, the lights in my bedroom and bathroom go in and out. It stops when the printer is finished. I went online and there was ample information that said lazer printers have been reported to do this. Mine does. The unit prints ok but I am worried. I have a guy coming over my house to get a look at this printer. I might have to return it. No device I have ever used did this to my lights. No other electrical devices were on while this printer did this. I have owned my house for over 10 years and its in good shape. I am concerned.

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