31e120n

Lexmark E120n error 31: Troubleshooting Guide

Lexmark E120n error 31 is a communication error between the device and the toner cartridge. It is often caused by dirt or poor seating of the cartridge. Follow this guide to learn how to fix error 31 on Lexmark E120n quickly.

0 views

Common causes

  • 1Dirty or oxidized toner contacts.
  • 2Cartridge not correctly engaged with the bay pins.
  • 3Damaged toner chip during installation.
  • 4Excessive dust buildup inside the print engine.

Solutions

Diagnóstico rápido

If the printer displays error 31, it cannot read the toner chip. Determining how to fix error 31 on Lexmark E120n starts with checking the cartridge seating.

Solución paso a paso

  1. Remove cartridge and inspect for physical damage.
  2. Clean gold contacts gently with an eraser or lint-free cloth.
  3. Reseat the toner until it locks in place.
  4. Power cycle the printer to clear the state.

Prevención y mantenimiento

Clean the internal bay area periodically. Always ensure your toner cartridges are genuine to prevent chip communication failures.

Cuándo llamar a un técnico

If the error persists with multiple cartridges, the main printer internal connector for the toner is likely damaged.

Ficha técnica del equipo

  • Technology: Monochrome Laser
  • Speed: 20 ppm
  • Connectivity: USB, Parallel
  • Capacity: 150 sheets
  • Compatible consumables: E120 series toner
  • Official support page

Steps to follow

  1. 1

    Remove cartridge

    Take out the toner cartridge from the printer.

  2. 2

    Clean contacts

    Wipe the gold contacts on the toner and inside the unit.

  3. 3

    Reinstall toner

    Place the cartridge back until it clicks.

Frequently asked questions

Try removing and reseating the toner cartridge, ensuring all connections are clean.

Usually just a communication error with the cartridge chip.

Use official Lexmark E120 series toner cartridges.

Regularly clean the internal bay with compressed air.