MY printer will receive a wireless command but will not print unless I connect the USB cable.

[magnum5]

I'm using a HP Envy 4520 printer.

[Jay_G24]

 Hi @magnum5,

Welcome to the HP Support Community

I'd like to help!

To assist better -

1. What is the status of the wireless light on the printer, steady or blinking?
2.  Is the printer connected to a home or public network?
3. What device are you using the printer with, a Windows computer, Mac, Android or an iPhone?

Meanwhile,

 Use HP Print and Scan Doctor to check connectivity

Download a special version of HP Print and Scan Doctor specifically created to help with printer offline conditions.

1. Download HP Print and Scan Doctor.
2. Run HPPSdr.exe from the download location on your computer.
3. Once HP Print and Scan Doctor opens, click Start, and then select your printer.
   • If your printer in not in the list, turn it off and on, and then click Retry.
   • If there is a connection problem, follow the instructions in HP Print and Scan Doctor.
4. If a screen prompts you to turn on printer updates, click Yes.
5. If a screen prompts you to make your printer the default printer, click Yes.

 Keep me posted. 

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