Cannot hard reset OfficeJet Pro 7740 because web portal prevents me from accessing 'locked' settings

[CookieMonster55]

Three years ago, I setup my printer on wifi and probably changed the username and password defaults at that time. I no longer have this info, and I'd like to reset the printer to factory settings. When I attempt to reset on the printer LCD control panel, or the printer's web portal,  I am stymied by the message: "This feature has been locked by the person who set up the printer". The suggested defaults ("admin", "12345678", etc) don't allow me to access the settings in "HP Smart" or the Printer's Web Interface to perform a 'hard reset'.

I have attempted the hard reset instructions found on this forum (unplug, purge power, plug back in & remove cartridges, unplug, purge power, plug back in, put cartridges back in) and none of those options worked for me.

While I've found similar posts of this issue on this board, the responses usually feature a 'private' message response with detailed instructions since the hard-reset routine varies between printers, since using an incorrect approach could 'brick' the printer. So I'd appreciate some help on how to reset this printer to factory settings, please.

[Max3Aj · Accepted solution]

@CookieMonster55, Welcome to the HP Support Community 

  

I understand you are facing an issue with your HP OfficeJet Pro 7740 Wide Format All-in-One Printer. Not to worry I will help you to get a resolution to resolve the issue. 

  

This needs one-on-one interaction hence I'm sending a private message to assist you with the next action. 

  

Please check your Private message icon on the upper right corner of your HP Community profile Next, to your profile Name, you should see a little blue envelope, please click on it or simply click on this link. 

  

I hope this helps! Keep me posted. 

  

Max3Aj

HP Support