A PC was hacked by fake "support". The AV provider says the printer can have malware after the hack.

[SpoonPlayer]

A Windows 10 PC was hacked by a scam fraud "HP Printer support". 
After the hack, the PC is replaced and the iPhone is wiped out. The Router is also replaced.

When in contact with ESET antivirus support, they say it's a theoretical risk that the hacker has installed malware in the printer.

1. Is it possible to do a factory reset of a HP ENVY 5544 K7C93A?

2. Will that wipe out malicious code installed into the printer, if any?

We don't want to start the printer on the WIFI network until we are sure it not will re-infect other devices on the network.

3. The third question - is there any place to send information to HP about the hackers that pretend they are HP support. 

[Echo_Lake]

@SpoonPlayer

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[SpoonPlayer]

Dear ECHO_LAKE,

thank you for the answer. I had three questions in my post and this was a helpful answer to question No. 1. 

Question No. 2 is important to get an answer  on. Is a reset making it 100 % sure to wipe out malicious code installed on the printer, if any? We don't want to connect the printer to the WiFi before we are sure it's safe.

Question No.3 is not as important, but it would be good if I can report this to someone on HP who investigate scammers pretending to be HP support.

[Echo_Lake]

@SpoonPlaye 

Thank you for posting back. 

To get the answer to these questions, performing a printer reset will put the printer back to its original factory condition, which means your printer firmware passwords and codes all will be removed. And, also in order to bring your issue to the attention of an appropriate team within HP, as we have limited support boundaries in the support community as of now. I am sending you a private message. Please check the mailbox icon at the top-right corner of this screen.

Keep me posted.