MFPs are about as powerful from a computing and interface standpoint as a PC. Manufacturers Canon, HP, Kyocera, Sharp and Xerox offer features to address the attendant security concerns. Xerox uses Department of Defense-level algorithms to erase scanned images from the device’s memory. Some vendors offer companies a removable hard drive that allows administrators to physically remove the hard drive each night and lock it away. Technology also allows “micro text,” printing so small that it is nearly unseen by the untrained eye.”]
Source: https://www.csoonline.com/article/2122880/secure-printer.html