49.4C02HP LaserJet Pro M203dw

HP LaserJet Pro M203dw Error 49.4C02: Firmware Fix

Error 49.4C02 on an HP LaserJet Pro M203dw is a critical communication error related to firmware or a conflict in the print queue. It typically occurs when a complex or malformed file is sent over the network, causing the printer memory to crash. The immediate fix is to clear all pending jobs and perform a network configuration reset.

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Common causes

  • 1Corrupt file in the network print queue.
  • 2IP address conflict with other local network devices.
  • 3Outdated firmware causing network communication bugs.
  • 4Memory overload when processing complex print jobs.

Solutions

Diagnóstico rápido

Error 49.4C02 presents as a continuous reboot loop. It is a software issue, meaning the printer operates perfectly until it attempts to process a specific file. Determine if the error occurs only when printing from one specific computer or from any device on the network.

Solución paso a paso

  1. Disconnect the network cable or turn off the printer's Wi-Fi immediately to stop incoming data.
  2. Clear the print queue on all computers connected to the network.
  3. Restart the device by holding the power button for 30 seconds while unplugged.
  4. Update the firmware by downloading the latest version from the official HP website once the printer is stable.

Prevención y mantenimiento

Avoid sending massive PDFs or files with extreme resolutions that saturate the printer's RAM. Keep print drivers updated on all network computers. If problems continue, assign a static IP address to the printer to avoid network routing conflicts.

Cuándo llamar a un técnico

If the 49.4C02 code appears immediately upon power-on even without network connectivity after firmware updates, the main logic board may be faulty.

Ficha técnica del equipo

  • Technology: Monochrome Laser
  • Processor: 800 MHz
  • Memory: 256 MB RAM
  • Connectivity: USB, Ethernet, Wi-Fi 802.11b/g/n
  • Compatible consumables: HP 30A (CF230A) or 30X (CF230X) series
  • Recommended use: Multi-user office environments
  • Official drivers / firmware

Steps to follow

  1. 1

    Network Isolation

    Disconnect Ethernet or Wi-Fi.

  2. 2

    Queue Clearing

    Cancel all pending print jobs on connected PCs.

  3. 3

    Power Cycling

    Turn off and hold the button for 30 seconds.

  4. 4

    Firmware Update

    Install the most recent firmware available.

Frequently asked questions

It is a bothersome software error, but it usually doesn't damage hardware unless it is a recurring logic board fault.

If updating firmware doesn't help, the file you are sending might be the cause; try printing a simple text page to test.

It uses HP 30A (CF230A) toner or the high-yield 30X (CF230X) version.

Yes, firmware updates patch network communication bugs and improve overall stability.