Guidance: My phone want a password to connect to my printer

Your printer does not have a password, but your router does. If you have installed any third party application that secures your apps, enter the password that you have assigned for unlocking the application and try.
Check whether the latest printer application is installed on your phone before you start. If your printer has a display panel, select Settings -> Network Connection or Network Settings.
Choose Wireless Setup Wizard or Network Setup for further assistance and the printer looks for a list of nearby networks, choose your network, enter the credentials of the router and tap Connect.
Go to your phone settings and check whether the printer is added to the list of devices in the Devices menu. If you are an iPhone user, open AirPrint and check if the latest version of it is installed.
Open a document or photo and select the Share icon.
Now select the printer from the list, and tap Print.
Make sure to complete the printer setup process properly and start printing.
Guess what! You need not use a router to print wirelessly if your printer supports Wireless Direct.
Just keep your printer and computer close to each other while printing using Wireless Direct.

ISSUE: UNABLE TO CONNECT HP ENVY 4500 ALL-IN-ONE PRINTER TO ANDROID PHONE WIRELESSLY [SOLVED]

Do you find it difficult to connect the HP Envy 4500 printer to your Android phone wirelessly?

We wish to take a moment to find answers for you.

You are requested to uninstall and reinstall the HP Smart app on your device.

If you are not able to connect the printer again, restore your mobile phone’s network settings by the following set of instructions.

Confirm if the HP Envy printer is switched on.

Tap the Settings menu on the printer’s control panel.

Look for the option called Backup and Reset.

Under the Reset tab, click the settings called Reset Network.

Click the option called Reset Settings on the control panel screen.

Enter a PIN, Password, or Fingerprint on the LCD screen if it is enabled on the printer.

Select the Reset Settings option again.

Wait until a confirmation message displays on the printer LCD screen after the reset process.

Obtain the printer connection again using the Wireless Setup Wizard on the printer control panel using the steps provided below.

On the home screen of your printer, tap the Wireless icon and then click Setting or Gear icon.

Tap the option called Wireless Setup Wizard.

Does your HP printer go offline after connecting it to a wireless router?

We are here to guide you in fixing the connectivity issues.

Check the following whether you experience any one of the errors listed below while connecting the printer to the network.

Printer not found

Unable to find the printer

No devices found

Your HP printer could not be found on your wireless network

Carry out the following set of instructions to resolve the printer connectivity problem.

Check whether the router you use has a stable internet connection.

Verify the network on the printer and the computer whether they both are connected to the same router.

Download an HP application HP Print and Scan Doctor.

Run the downloaded software program and click the Start button.

Select your HP printer name from the list or click Retry if not listed.

Go with the on-screen instructions displayed on the tool to solve the connection problem.

If the problem continues, uninstall the current printer driver and reinstall it from the website.

Switch off the devices like printer, computer, and router.

Restart all the devices after 30 seconds and reestablish the connection.

Try to connect the printer using the Wireless Setup Wizard feature available on your printer control panel or by Wi-Fi Direct feature.

Enter the exact network name that includes any uppercase and lowercase letters.

Go to the Setup option available on your printer control panel.

Take a test page printout to get a Wireless Network Test Report of your printer.