850MC562dn

OKI MC562dn error 850: Network Communication Fix

The OKI MC562dn error 850 is a network communication issue, indicating the printer cannot talk to the network server or router. It is common to wonder why does my OKI MC562dn show error 850 when printing over the network, usually due to a physical cable disconnect or an IP address conflict. A basic check of networking hardware usually resolves the problem.

1 views

Common causes

  • 1Physical Ethernet cable disconnection.
  • 2IP address conflict with another device on the LAN.
  • 3Transient router/switch failure during address assignment.
  • 4Incorrect network card configuration or corrupted firmware.

Solutions

Diagnóstico rápido

The error 850 occurs when the network subsystem timeouts or encounters an invalid config. Ensure your wider network is functional before performing printer-specific diagnostics.

Solución paso a paso

  1. Ensure the Ethernet cable is securely connected at both ends (printer and router/switch).
  2. Power off and on the printer to reset the internal network module cycle.
  3. Navigate to the network menu on the control panel and confirm the assigned IP matches your network segment.
  4. If using a static IP, try switching to DHCP to see if the router can assign a working address automatically.

Prevención y mantenimiento

Assigning a fixed IP (outside the DHCP pool) prevents conflicts. Keep network cabling away from power sources to avoid signal interference.

Cuándo llamar a un técnico

If the printer consistently fails to acquire an IP address (0.0.0.0) despite correct settings, the physical network card may have failed.

Ficha técnica del equipo

  • Technology: Digital LED Color
  • Connectivity: Ethernet 10/100, USB 2.0, Wireless
  • Compatible Consumables: OKI MC562 series
  • Network Protocols: TCP/IP, LPR, SNMPv3
  • Maintenance: Network firmware updates
  • Official drivers / firmware

Steps to follow

  1. 1

    Check Cable

    Ensure the Ethernet cable is securely connected at both ends.

  2. 2

    Restart Printer

    Power off and on to reset the internal network card.

  3. 3

    Check IP

    Check the network menu to see if the printer has a valid IP address from your router.

  4. 4

    Re-establish Network

    If using static IP, check for address conflicts with other devices.

Frequently asked questions

The error 850 typically appears when the printer loses connection to the network or suffers from an internal IP address conflict.

It is urgent if you rely on network printing, as the device will remain unreachable until connectivity is restored.

Reserving a static IP address in your router for the printer is the best way to avoid future communication conflicts.

Yes, the MC562dn supports Wi-Fi, but Ethernet usually provides better stability for busy office environments.