The MacBook pro consists of two USB slots that can connect to the devices which use USB and the steps to install the HP printer on MacBook pro are enlisted below: 

You will have to click the "Apple icon" and then choose the "Software update" 

Then make sure that you check the updates that you have already missed

By tapping the power button, you can turn on your HP printer

Using the usb cable, the HP printer can be connected to the Apple computer

Then choose the "Apple" icon and under that, you will have to select the system preferences

After this, click "Print and scan"option

Select the plus icon and feed the name of your administrator

The HP printer will be added based on your preference

So make sure that you add the right printer.For more details Check hp.com/setup

Troubleshooting Issues

These are some of the issues you might face: 

• Sometimes the right software for your device may be present
• The printer message might not appear
• Issues in hardware 

The best way to end all your troubleshooting issues is to reset your printer completely to defaults. For issues regarding the wireless setup, you will have to check with the router. By using the firmware that has been released recently you can update the printer. Or else try removing and installing the printer again. If you face any issue with the printer driver, then try installing other drivers which suit your printer well. For more information Reach @+1-866-269-0750 Or Check out my site 123.hp.com/support