How to erase documents on a printer before sale or disposal

Most printers don’t retain information; multi-function printers might.
canon mx310
Canon
    Related:
  • Printers
  • Multifunction Printers
  • Computers and Peripherals
Glenn Fleishman’s most recent books include Take Control of iOS & iPadOS Privacy and Security, Second Edition (covering iOS 15/iPadOS 15), Take Control of Your M-Series Mac, and Take Control of Securing Your Mac. In his spare time, he makes Tiny Type Museums. He’s a senior contributor to Macworld, where he writes Mac 911.