These units are in good cosmetic condition, refurbished throughout and supplied with good part used consumables.

This is what HP has to say: -

Enhance security with plenty of built-in and optional security features, increase productivity with reliable, automatic duplex printing and fast print speeds and print from smartphones, tablets or laptops with mobile printing options.
Ideal for small workgroups of one to five people who want to simplify everyday printing with a value-packed printer that helps increase productivity.