Comm-ErrorPC42t

Error Comm-Error Honeywell PC42t: Communication failure

The Honeywell PC42t error Comm-Error occurs when the printer loses logical or physical connection with the host device (PC or server). This warning appears during data transmission, blocking the print queue and preventing the machine from receiving new labels. If your Honeywell PC42t shows Comm-Error, it is essential to rule out cabling failures before checking driver configuration in the OS.

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Common causes

  • 1Damaged USB or Ethernet cable or poor connection.
  • 2Driver conflicts with recent Windows versions.
  • 3Overheating of the communication processor on the mainboard.
  • 4Faulty PC USB port due to power issues or outdated drivers.

Solutions

Quick Diagnosis

If the error appears suddenly, check if the computer recognizes the printer as 'Unknown Device' in the device manager.

Step-by-Step Solution

  1. Disconnect and reconnect the USB or Ethernet cable to ensure a firm connection.
  2. Try another USB port on the computer or replace the cable to rule out physical damage.
  3. Ensure the printer port in Windows matches exactly the physical port being used.
  4. Restart the 'Print Spooler' from Windows services.

Prevention and Maintenance

Avoid USB cables longer than 3 meters without a repeater. Ensure the environment is free from electromagnetic interference that might affect transmitted data integrity.

When to Call a Technician

If the Comm-Error persists after testing with new cables and different PCs, the internal communication port (USB or logic board) might be defective.

Technical Specifications

  • Technology: Thermal transfer / Direct thermal
  • Interface: USB (standard), Serial/Ethernet (optional)
  • Compatibility: Direct Protocol (DP), ZPLII, EPL
  • Consumable: Wax/Resin ribbon
  • Usage: Shipping, inventory, and retail labels
  • Official drivers / firmware

Steps to follow

  1. 1

    Check cabling

    Disconnect and reconnect the USB or Ethernet cable to ensure a firm connection.

  2. 2

    Change port

    Try another USB port on the computer or replace the cable if possible.

  3. 3

    Verify driver

    Ensure the printer port in Windows matches the actual physical port being used.