42.02MX611dhe

Lexmark MX611dhe error 42.02: Scanner communication

The Lexmark MX611dhe error 42.02 indicates a data communication error within the scanning subsystem. Unlike motor jams, this error implies that the main system board has lost the signal from the scanner processing unit. Understanding why does Lexmark MX611dhe show error 42.02 is the first step in diagnosing internal wiring failures or board defects.

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Common causes

  • 1Bad communication cable.
  • 2Processor fail.
  • 3Voltage spikes.
  • 4Firmware corruption.

Solutions

Diagnostic

This error occurs when the scanner module stops sending data. Check if the error appears at startup or during scanning.

Troubleshooting Steps

  1. Power down: Turn off and unplug for at least 5 minutes.
  2. Firmware check: If the machine can boot, verify current firmware status via network interface.
  3. Scan test: Attempt a simple test copy; if it hangs or displays 42.02, the module is not communicating.
  4. Cable inspection: Verify the condition of internal flat cables if accessible.

Maintenance

Protect against power surges; scanner components are highly sensitive to power fluctuations.

When to call a technician

If firmware and power cycling fail to resolve 42.02, the scanner board is likely dead.

Equipment specs

  • Technology: Laser
  • Scan: Color/Mono
  • Connectivity: LAN/USB
  • Consumable: 60F Series
  • Memory: 1GB
  • Use: Enterprise
  • Support

Steps to follow

  1. 1

    Power down

    Turn off and unplug for 5 minutes.

  2. 2

    Firmware check

    Verify firmware update via network.

  3. 3

    Scan test

    Run a copy test to see if it responds.

  4. 4

    Cable inspection

    Check for loose or damaged ribbon cables.

Frequently asked questions

Communication failure between the main board and the scanner image processor.

Power cycling often restores the handshake between boards. Otherwise, cable failure is likely.

Use a high-quality UPS to protect sensitive scanner electronics.

Usually yes; replacing internal ribbons or boards requires specialized labor.

Lexmark MX611dhe error 42.02: Scanner communication | Vimazdev