Thank you for posting your query in this forum, it's a great place to find answers.
I reviewed your post and I understand that you want to know how to retrieve the printer password and whether you can print with a single cartridge.
Don’t worry, we will work together to resolve this issue and It’s a pleasure to assist you in this regard.
I would like to inform you that you can print in single cartridge mode with one cartridge installed on the printer.
The printer doesn’t have any password, you need to enter the password of your router to connect the printer to your wireless network. Please refer to the below article how to find your router password.
To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as “Accepted Solution” as it will help several others with the same issue to get it resolved without hassles.
The_Fossette I am an HP Employee
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