communication-errorpc42t-plus-ii

Honeywell PC42t Plus II communication-error: Solution

The Honeywell PC42t Plus II communication-error indicates an interruption in data flow between the printer and the host computer. This warning usually appears when the operating system loses port recognition or the cable sustains physical damage. We recommend checking connection integrity before performing advanced software troubleshooting.

1 views

Common causes

  • 1Faulty data cable: Physical wear prevents stable transmission.
  • 2Incorrect port settings: Software is attempting to communicate with an inactive COM port.
  • 3Outdated drivers: Incompatibility between the latest OS and older firmware.
  • 4EMI Interference: Using unshielded cables near power sources.

Solutions

Quick Diagnosis

The error occurs when the printer driver receives no handshake confirmation from the device. Check if the status LED is blinking orange, which often accompanies a connection loss in the label management software.

Step-by-step Solution

  1. Physical Inspection: Disconnect the USB/Serial cable and inspect for bent pins or port debris.
  2. Switch Ports: Plug the cable into a different USB port, preferably on the back of the computer tower.
  3. Driver Reinstallation: Uninstall the current driver from the Control Panel and install the latest version from the manufacturer's site.
  4. Port Configuration: Ensure the printing software is set to the correct COM or USB port as identified in Device Manager.

Prevention and Maintenance

Use high-quality shielded cables under 1.8 meters to avoid EMI. Clean the printhead with 99% isopropyl alcohol whenever you swap ribbons to ensure sensors are not triggered by debris. Avoid hot-unplugging cables while the device is in the middle of a print job.

When to call a technician

If the device remains undetected after testing a new cable and different ports, the internal communication board or motherboard may be faulty and requires professional servicing.

Equipment Datasheet

  • Technology: Thermal Transfer / Direct Thermal
  • Print Speed: Up to 101.6 mm/s
  • Connectivity: USB, Optional Serial or Ethernet
  • Media capacity: Up to 110mm media width
  • Compatible consumables: Ribbon rolls (12.7mm core) and thermal labels (PC42 family)
  • Recommended use: Logistics and light retail
  • Official drivers / firmware

Steps to follow

  1. 1

    Check physical connection

    Disconnect and reconnect the USB or serial cable, ensuring a firm fit at both ends.

  2. 2

    Check device drivers

    Open Device Manager in Windows to ensure the COM or USB port is correctly recognized.

  3. 3

    Power cycle communication

    Turn off the printer, wait 30 seconds, and turn it back on while the label software is open.

Frequently asked questions

This error occurs when the device fails to establish a stable data handshake with the computer, usually caused by cable faults or incorrect port mapping.

It is not a critical hardware failure, but it prevents printing until the connection link is restored.

It uses wax, resin, or wax-resin ribbons and thermal transfer labels.

Use shielded USB cables under 1.8 meters and avoid USB extensions to prevent signal loss.