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How to Set Up HP LaserJet MFP M139we

How to Set Up HP LaserJet MFP M139we

The HP LaserJet MFP M139we is a compact monochrome printer that has the capability to print, scan, and copy. Assembly requires toner cartridge installation, paper loading, power connection, HP Smart installation, and printer Wi-Fi network connection. 

The HP M139we setup guide contains everything you need to know about installation on every operating system, from Windows to Android to iPhone. It provides step-by-step configuration of wireless and WPS connections. It also includes how to install and test toner, scanning, and resolve common issues like poor connection, printing offline errors, paper jams, and issues with the detection of HP Smart.

What You Need Before Starting HP M139we printer setup

Before opening the printer, you have: 

  • HP LaserJet MFP M139we printer 

  • Power cord 

  • HP black toner cartridge 

  • USB cable, if you want a wired connection 

  • A computer or mobile device 

  • Wireless network name and password 

  • A stable internet connection 

As a laser printer, the M139we uses a toner cartridge — not liquid ink cartridges. Make sure the compatible HP cartridge is recommended for use with your printer and in your region. 

Read More: HP LaserJet M110w Printer connected to Wi-Fi

Step 1: Unpack the Printer 

  1. Put the printer on a solid, level surface near your wireless router and power source. 

  2. Open the box and remove all protective packaging from around the printer. 

  3. Remove foam, plastic wrap, and tape from the cardboard inserts. 

  4. After opening the scanner unit and paper input area, examine them for any extra delivery plastic. 

  5. Keep the packaging until the printer operates properly. You may need it if the printer needs to be moved or returned. 

Never put the printer in direct sunlight or in a wet or dusty place. Keep some open space on all sides so the paper tray and scanner cover can open properly. 

Step 2: Connect the Power 

  1. Attach the power cable to the back of the printer. 

  2. Plug the other end into a properly grounded wall outlet. 

  3. Press the power button. 

  4. Allow the printer to go through its startup processes. 

During the initial startup, please avoid shutting down or turning off the printer. It might take a few minutes for some of the startup procedures. 

Step 3: Install the Toner Cartridge 

The black toner cartridge works with the HP LaserJet MFP M139we. 

  1. Open the toner access door. 

  2. Unbox the toner cartridge. 

  3. Grip the cartridge around its sides. 

  4. Rock it gently from side to side. 

  5. Break the protective seal or pull the tab. 

  6. Place the cartridge into the printer and slide it in until it is securely seated. 

  7. Close the toner access door. 

Never touch the imaging surface on the cartridge. Fingerprints or scratches can impact print quality. In case any toner gets on your hands, please wipe it off with a dry cloth. Never use hot water, as heat can cause toner to chemically bond with fabric or surfaces. 

Step 4: Load Paper 

  1. Set the paper guides in the input tray.

  2. Place a small stack of blank Letter- or A4-size paper.

  3. The paper must be kept below the tray's maximum fill line.

  4. Move the guides lightly along both edges of the paper.

Use clean, dry paper. Paper jams and slanted printing may result from curled, damp, or severely bent sheets. 

Step 5: Use HP Printer Software

HP Smart App: Recommended Setup Method

The HP Smart app is available for Windows, macOS, Android, and iOS.

  1. Head to the official HP website or your device's app store and download HP Smart.

  2. Install and open the application. 

  3. If prompted by the app, sign in or create an HP account.

  4. Select Add Printer or the option with a plus sign. 

  5. Select the HP LaserJet MFP M139we when it appears.

  6. Follow the on-screen instructions to finish the setup. 

HP Smart might prompt you to accept HP+ services or sign up for an HP toner subscription during installation. Look at these options carefully and only pick the services that you want. 

Windows will also likely detect the printer automatically on Windows computers. However, HP Smart is usually your go-to because it provides scanning tools, printer status information, firmware updates, and troubleshooters. 

Step 6: Set Up the Printer to Wi-Fi 

For a wireless configuration, keep the printer near the router while setting it up. 

  1. Open HP Smart.

  2. During the installation process, have it find the printer.

  3. Choose your wireless network.

  4. Enter the Wi-Fi password carefully. 

  5. Wait for the printer to connect.

  6. When requested, print a test page.

Your computer or mobile device usually needs to be on the same Wi-Fi network as the printer. For some routers that have both 2.4 GHz and 5 GHz network names, try the former if your printer isn't found during setup. 

Connect Using WPS 

If the router supports WPS, you can connect without entering the Wi-Fi password: 

  1. Press the WPS button on your router.

  2. Follow the instructions in HP Smart to put your printer into Wi-Fi setup mode during this time. 

  3. Then wait for the wireless light or status indicator to indicate that it is connected. 

The button sequence will differ by printer firmware and region, so follow what appears in the HP Smart app. 

Step 1: Add the Printer to Your Computer or Phone 

If the printer does not appear on its own: 

Windows 

  1. Open Settings.

  2. Go to Bluetooth & devices > Printers & scanners.

  3. Choose Add device.

  4. When you see the HP printer, select it. 

  5. Follow the prompts to finish. 

macOS 

  1. Open System Settings.

  2. Select Printers & Scanners.

  3. Select Add Printer, Scanner or Fax.

  4. Choose the HP LaserJet MFP M139we.

  5. Click Add. 

Android or iPhone 

Open HP Smart, tap Add Printer, and follow the guided setup. When your phone asks, allow the app to search for devices on your local network. 

Step 2: Print a Test Page 

Once installed, print a test document or the printer's own test page. Check for: 

  • Clear, dark text 

  • No vertical lines or gray background 

  • Correct paper alignment 

  • No strange noises, such as squeaking or grinding 

  • Successful wireless communication 

You can also place a document on the scanner glass and test whether you are able to make copies. Test scanning using HP Smart or the built-in scanning app for your operating system. 

Setup Troubleshooting for HP LaserJet MFP M139we 

1. HP Smart Cannot Find the Printer

Try these technician-recommended checks:

  1. Make sure the printer is powered up.

  2. Ensure the phone or computer is connected to Wi-Fi.

  3. Move your printer closer to the router.

  4. Restart the printer, router, and computer or mobile device.

  5. Disable a VPN temporarily because local device discovery might be blocked by it.

  6. Close and reopen HP Smart.

  7. If the printer was connected to another network, reset the network settings on the printer and set it up again.

2. Unable to Connect the Printer to Wi-Fi

Ensure that you have entered the correct Wi-Fi password and check whether your router is functioning properly. Please do not use a guest network, which may restrict communication between devices on the network. 

If the wireless light remains blinking, run through HP Smart to set up the wireless connection again. A network reset might be needed if old router information is saved on the printer. 

The Printer Says "Offline"

First, verify the power and WLAN status of your printer. Then: 

  • Restart the printer. 

  • Restart the router. 

  • Delete duplicate printers from the computer. 

  • Set the HP printer as the default printer. 

  • Clear any print commands stuck in the print queue. 

  • Run the printer troubleshooter in Windows or macOS. 

Ensure that the USB cable is firmly inserted, if applicable, and try another USB port. 

Paper Keeps Jamming

Switch the printer off and gently take out any loose paper inside. Look inside the input and output areas for ripped pieces. 

Use the proper paper size and avoid overfilling the tray. Align the paper guides so that they touch but do not press against the stack. Do not jerk paper through the unit, as this can introduce shreds that stay in the paper path. 

The Prints Are Faded or Banded

A page that has faded may be a sign that the toner is low or not being distributed evenly. Take out the cartridge and rock it gently from side to side before putting it back in place. If the issue remains, replace the toner with a genuine cartridge or a correct certified compatible cartridge. 

Also check the print settings. Choose draft or economical mode to decrease toner density. 

Scanning Does Not Work 

To do this, ensure the printer is detected in HP Smart and that the scanner lid is completely shut. Exit the application and look for software or firmware updates. 

Place the original document on the glass side down and orient it according to the printer's markings. If you have a brand-new printer that has some kind of protective film on the scanner glass, remove it. 

There Is an Error With the Toner or Cartridge

Take out your cartridge and make sure all shipping tape and protective material are removed. Reinstall it securely and close the access door. 

If the error persists, check if you have chosen a cartridge model compatible with this exact version of the M139we sold in your country. Note that cartridge numbers can vary from region to region. 

When to Contact HP Support

Contact HP Customer Support in case the printer: 

  • Does not power on 

  • Shows a persistent hardware error 

  • Makes loud mechanical noises 

  • Continues to have connection problems after resetting the network 

  • Continues to have output defects with a new toner cartridge 

Have the printer model number, including its serial number, the error message generated by the printer, and information about where you bought your printer. This will help the support technician find the problem more quickly. 

Frequently Asked Questions 

1. Does the HP LaserJet MFP M139we Use Ink? 

No. It is a black-and-white laser printer and uses toner instead of liquid ink. 

2. Can I Set Up the Printer Without Wi-Fi? 

Yes. You can usually use a USB cable with an appropriate computer. All wireless features are Wi-Fi and Internet dependent, including mobile printing and some cloud services. 

3. Is HP Smart Necessary to Run the Printer? 

HP Smart itself is the quickest setup option, offering scanning and maintenance tools. The printer may also be installed from a computer using its built-in printer settings. 

4. Why Is HP Smart Asking Me to Sign In? 

You may need an HP account to use some services, including those connected with HP+ features and cloud-based tools. Review your options before adopting extra services. 

5. How Do I Reset the Wireless Settings of the Printer? 

Follow the network or wireless reset instructions that you see in HP Smart, or refer to your printer's official user guide. After the reset, re-add the printer as a new device. 

6. How Long Does the Setup Take? 

The fundamental unboxing and software deployment normally take 15 to 30 minutes. Additional time may be required for wireless troubleshooting, firmware updates, or account setup.