Not Compatible with HP LaserJet Pro 4001ne, HP LaserJet Pro 4001dwe For these printers buy new hp cartridges only.

HP printers ending in "e" (e.g., LaserJet M209dwe, DeskJet 2755e) are designed for the HP+ smart printing system, which requires a mandatory, continuous internet connection and exclusive use of Original HP Toner/Ink. These machines often come with 6 months of free Instant Ink subscription, but are limited to new HP OEM toner cartridges only.