COMMUNICATION ERRORE-Class Mark III

Fix Communication Error Honeywell E-Class Mark III

The 'Communication Error' on a Honeywell E-Class Mark III indicates that the printer is unable to establish a handshake with the host computer. Common causes include driver mismatches, faulty cabling, or incorrect network configurations.

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Common causes

  • 1Mismatch in Baud Rate or Flow Control settings.
  • 2Damaged USB or Ethernet cable causing signal interference.
  • 3Dynamic IP conflicts on the network adapter.

Solutions

Cable & Port Verification

  1. Unplug and replug communication cables to ensure a solid connection.
  2. Try a different USB port on your host PC.
  3. Verify the cable is high-speed and shielded to avoid data packet loss.

Driver Port Settings

  1. Open 'Printer Properties' in your Windows Control Panel.
  2. Navigate to the 'Ports' tab.
  3. Confirm that the selected port matches the current connection (e.g., matching the assigned IP address).

Steps to follow

  1. 1

    Physical Check

    Ensure all cables are securely plugged.

  2. 2

    Driver Refresh

    Re-assign the printer port in Windows settings.

  3. 3

    Networking

    Verify static IP settings for LAN printers.

Frequently asked questions

Yes, network firewalls often block non-standard printer ports on local area networks.

You must check the 'Serial Port' settings in both your Device Manager/Driver and the Printer Menu to ensure they are identical.

While mostly backward compatible, sometimes USB 3.0 ports cause handshake issues with legacy printers; try a USB 2.0 port if possible.