Download the latest software and drivers for your HP Photosmart C4380 All-in- One Printer. Contents. 1 HP Photosmart C4380 All-in-One series Help. Use the HP Photosmart Software. 5 Finish setting up the HP All-in-One. Computer connection. The All-in-One is working, but printed output shows streaks or lines. The lines are perpendicular to the direction the paper moved through the All-in-One and. Install the HP software and drivers for a network connection. Setting Up the Printer for a Wireless Network for the HP Photosmart C4380 and C4500 All-in- One.