The **HP OfficeJet Pro 6978** is a discontinued all-in-one printer designed for home offices or small workgroups, offering print, copy, scan, and fax functions. It delivers professional-quality color printing with speeds up to **20 ppm black** and **11 ppm color**, supports two-sided printing and scanning with a **35-page automatic document feeder**, and allows mobile printing via HP ePrint and other wireless options[1][2].
Key features include:
– **Color touchscreen** for job management directly on the printer
– Automatic duplex (two-sided) printing and scanning
– Mobile printing from smartphones, tablets, and laptops simultaneously
– Fax functionality built-in
– Instant Ink compatibility for subscription ink service
The printer uses cartridges with HP chips for dynamic security (which can block unauthorized cartridges), but supports reused and remanufactured cartridges with a reused chip[1]. It comes with starter ink cartridges included when purchased new[2].
For wireless printing and scanning, it supports Wi-Fi Direct and can connect directly to mobile devices without needing a router[4]. Common troubleshooting for printing issues (e.g., black ink not printing) includes power resetting and cleaning clogged printheads[5].
Because this model has been discontinued by HP, supplies such as ink cartridges remain available but the printer may not receive firmware updates beyond a certain point[1]. Overall, it is well-suited for users needing a versatile, affordable all-in-one with professional print quality and mobile convenience.