900.55XM5365

Lexmark XM5365 Error 900.55: Network Failure

The Lexmark XM5365 error 900.55 is a software exception occurring in the printer's network board. This usually happens when the printer handles a specific network packet that its current firmware cannot resolve. When wondering why is my Lexmark XM5365 showing error 900.55, consider recent network updates or connectivity changes in your office environment.

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Common causes

  • 1Network firmware stack overflow.
  • 2Corrupt network packet traffic.
  • 3Post-update network configuration error.
  • 4Defective physical network controller.

Solutions

Quick Diagnosis

If the machine hangs on startup with the Ethernet plugged in, but boots fine without it, you are dealing with a network conflict. If it crashes even without the cable, the error is within the onboard network controller firmware.

Step-by-Step Solution

  1. Isolation: Unplug the LAN cable and reboot the device.
  2. Update Firmware: Access the menu (if accessible offline) and flash the latest Lexmark firmware.
  3. Network Reset: Wipe current network configurations and re-establish settings from scratch.

Prevention and Maintenance

Keep your network environment clean of broadcast storms and update printer firmware every six months to handle new network protocols.

When to Call a Technician

If you have flashed new firmware and performed a network reset, yet the 900.55 error persists, the network controller hardware is likely damaged.

Device Technical Specifications

  • Technology: Monochrome Laser MFP
  • Performance: 65 ppm
  • Connectivity: Ethernet/USB
  • Consumables: Genuine XM series toner
  • Recommended Use: High-volume business
  • Drivers / Official Firmware

Steps to follow

  1. 1

    Isolation

    Unplug the LAN cable and reboot the device.

  2. 2

    Update Firmware

    Access the menu (if accessible offline) and flash the latest Lexmark firmware.

  3. 3

    Network Reset

    Wipe current network configurations and re-establish settings from scratch.

Frequently asked questions

It indicates a critical software exception in the network controller board, often linked to firmware or incoming data traffic.

Disconnect the network cable and restart the device; if it boots fine, the issue is related to external network traffic.

Yes, if the printer is accessible offline, downloading the latest Lexmark firmware update often resolves these exceptions.

This is a network/firmware error, not toner-related, but always maintain original supplies to keep the printer environment stable.