80.43CX310dn

Lexmark CX310dn error 80.43: Toner Issue

The Lexmark CX310dn error 80.43 indicates that the printer cannot communicate properly with the memory chip on the installed toner cartridge. This error is common when using compatible toners or when contact pins have become dirty with residual dust during replacement. Learning to fix the 80.43 error on the CX310dn allows you to restore productivity quickly through simple cleaning.

1 views

Common causes

  • 1Dirty or contaminated toner chip contacts.
  • 2Cartridge misaligned in its rails.
  • 3Defective or incompatible toner chip.
  • 4Damaged connection pins inside the printer unit.

Solutions

Diagnóstico rápido

If the error appears for a specific color (e.g., 80.43 Cyan), the fault is localized to that specific cartridge. Reseating it is often enough.

Solución paso a paso

  1. Inspect Toner: Identify the faulty cartridge via the display and remove it.
  2. Clean Contacts: Use a clean, dry cloth to wipe the gold contacts on the toner chip.
  3. Printer Side Cleaning: Carefully clean the metallic pins inside the printer's toner slot.
  4. Reinstall: Reinsert the cartridge and ensure it clicks securely into place.

Prevención y mantenimiento

Avoid touching the toner chip during handling. If using compatible supplies, ensure the chip is a modern version to avoid firmware conflicts.

Cuándo llamar a un técnico

If the 80.43 error persists after cleaning and testing with a different cartridge, a connection pin inside the toner port might be bent or broken, requiring professional service.

Ficha técnica del equipo

  • Technology: Color Laser Printer
  • Speed: 24 ppm
  • Connectivity: USB, network
  • Compatible consumables: Lexmark 702 (C, M, Y, K)
  • Recommended usage: Small office
  • Official Drivers / firmware

Steps to follow

  1. 1

    Inspect Toner

    Remove the toner cartridge that triggers the error and examine the gold chip.

  2. 2

    Clean Contacts

    Wipe the copper contacts of the chip with a dry cloth to ensure readability.

  3. 3

    Reinstall

    Insert the toner firmly until you hear the locking click.

Frequently asked questions

It indicates a communication problem between the printer and the toner chip, preventing the consumable from being recognized.

It can occur with both original and compatible toners if the contact pins are dirty or worn out.

This printer uses the Lexmark 702 series. Always verify the model is correct for your region.

Avoid touching the gold contacts with your fingers and keep the area free of toner dust.