my printer its asking for passwords don't have any

[Paulo97]

my printer its asking for passwords don't have any

color laser jet pro MfP 4031fdw

[Dragon-Fur]

@Paulo97 

Welcome to the HP English Community --

I don't find any MFP 4031 printers --

If this is your printer model series

HP Color LaserJet Pro MFP 4301-4303dw/fdn/fdw Printer series  

and

You are asking about the PIN number that allows you into the printer Embedded Web Server or other settings requiring access to the printer's settings

Then

Open the user manual and check Page 28-29

HP Color LaserJet Pro MFP 4301, HP Color LaserJet Pro MFP 4302 - User Guide

If you are asking about the password to your network,

Log into your router - the information should be in the SSID named network for Ethernet / Wireless setup.

=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=

References / Resources

HP Printer Home Page - References and Resources

Learn about your Printer - Solve Problems

“Things that are your printer”

When the website support page opens, Select (as available) a Category > Topic > Subtopic

NOTE: Content depends on device type and Operating System

Categories: Warranty Check, Alerts, Troubleshooting, Ink & Paper, HP Software & Drivers / Firmware Updates, Setup & User Guides, Product Specifications, Account & Registration, Warranty & Repair

Open 

 Product Home - Printers

 Enter the device type and model name of your HP product

OR

 Select a saved product from HP Account Dashboard

OR

HP Color LaserJet Pro MFP 4301-4303dw/fdn/fdw Printer series  

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Question / Concern Answered, Click my Post "Accept as Solution"

[tanyajohn]

It seems your HP Color LaserJet Pro MFP 4031fdw is requesting a password, which could be due to a network or printer security setting. Check if it's asking for your Wi-Fi password or the printer's admin password. If you don’t recall setting one, try accessing the printer’s web interface to reset it. A factory reset might also help resolve the issue. If you're using a docking station like the Dell WD15, ensure your connections and network settings are properly configured.