Follow the set of instructions given below to download the HP Smart App :
Check whether your smartphone is sharing the same wireless network as your 123 hp com.
Setup your router and the smartphone closer.
Now, open the Play Store and search to navigate the HP Smart App.
Download the HP Smart App.
Once download is finished, click to install the HP Smart app.
Now, click on the plus button found on the App screen to add your HP printer.
Then connecting your HP printer and smart phone by using the HP Smart App and continue to taking exclusive prints, copies, and scans at ease using the HP Smart App.