Connect HP Officejet Pro 6978 Printer to the Wireless Network 

1. Complete the hardware setup of your printer. Install the ink cartridges and load paper into the printer’s paper tray. 
2. Turn on your printer. 
3. Tap the Wireless icon on the printer’s control panel. 
4. In the next window, tap on the Settings icon. 
5. In the settings screen, select Wireless Settings option.  
6. Then, select Wireless Setup Wizard. 
7. It will start searching for the networks in range. 
8. Tap on the name of your network. 
9. It will show you a pop-up box, enter your Wi-Fi password and touch OK. 
10. Wait till the printer is connected to the network.  
11. When the Connection Successful screen appears, touch Done. 

Download HP Officejet Pro 6978 Printer Driver

Follow the below-given steps to download the printer driver from 123.hp.com/setup 6978: 

1. Open a web browser.
2. Then, type 123.hp.com/setup 6978 in the address bar. 
3. In the next window, enter Officejet Pro 6978 into the search bar and then click on the search button. 
4. Then, click on the Download button. 
5. Wait till the file is downloading.
6. Once the download process is completed, the file will be saved in the Downloads folder. 

Install HP Officejet Pro 6978 Printer Driver 

* Windows: 

Follow the below-given steps to install the printer driver from 123.hp.com/setup 6978 on Windows: 

1. Open the Downloads folder.
2. Then, double-click the file of HP Officejet. 
3. It will show you the pop-up box of Security Warning. Click on the Run button. 
4. User Account Control pop-up box appears asking for your permission to make necessary changes to your computer. For granting permission, click on the Yes button.
5. It will show you the Software Selection window. Click on the Customize Software Selection tab to select your preferred software. Then, click on the Next button. 
6. Now, read End User License Agreement, Web Services Enablement and Internet Connection Usage Settings. To accept the terms, select the checkbox given there and then click on the Next button. 
7. The installation of your selected software begins. Once the software is installed, click on the Next button located at the bottom-right corner of the window. 
8. Now, the Connections Options window will display on your screen. Select the Wireless Connection to connect your printer with the computer. 
9. When the screen shows that your printer is found, select your printer and then click on the Next button. 
10. Now, the printer driver starts installing. Wait till the installation process is completed. 
11. After the driver is installed, click on the Finish button. 

* Mac: 

Follow the below-given steps to install the printer driver from 123.hp.com/setup 6978 on Mac: 

1. Open the Downloads folder on your Mac system. 
2. Search for the setup file and then double-click on it. 
3. In the next window, read all the terms and conditions of the installation agreements. If you agree with the terms, click on the continue button given at the bottom-right corner of the window. 
4. Now, connect your printer to the Mac wirelessly. Then, click on the Continue button. 
5. Once your printer is detected, select your printer and then click on the continue button. 
6. The software Installation window will be shown on your screen, click on the Install button to start the installation process of your printer driver and software. 
7. Once the installation process is completed, click the Continue button.
8. It will take you to the Add Printer window. Select your printer and then click on the “Add” button.
9. The print Test window will appear on your screen. Click on the  Print Test Page button and then follow the on-screen instructions to print a page. 
10. At last, click on the Finish button. This completes the Officejet Pro 6978 setup from 123.hp.com/setup 6978.