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How to Fix Communication Error 21000068?

Published in Printer Troubleshooting 5 mins read

To effectively fix communication error 21000068, a critical step involves checking your printer's compatibility with the WICReset tool and utilizing it if compatible. This specialized tool often resolves internal printer issues that manifest as communication errors. Alongside this, general troubleshooting for printer connectivity and software issues is essential.

Understanding Error 21000068

Communication error 21000068 typically indicates a breakdown in the dialogue between your computer and your printer. While it can stem from various sources, it often points to an underlying internal problem with the printer itself or a conflict in the communication pathway. These internal issues can range from a full waste ink counter to corrupted firmware, which the WICReset tool is designed to address.

Primary Solution: WICReset Tool for Printer Maintenance

For error 21000068, a highly effective solution is to leverage the WICReset tool, especially if your printer is compatible. This tool is specifically designed to manage and reset internal printer counters, such as the waste ink pad counter, which can prevent your printer from operating and lead to communication errors when full.

Here's how to proceed:

  1. Check Printer Compatibility: Before downloading, verify if your specific printer model is supported by the WICReset tool. This information is usually available on the tool's official or reputable distributor websites.
  2. Download and Install: If compatible, download the WICReset utility from a trustworthy source and install it on your computer.
  3. Run the Tool: Connect your printer to your computer, open the WICReset tool, and follow its instructions to check your printer's status and perform necessary resets (e.g., waste ink pad counter reset). This process can resolve the internal status errors that trigger the communication issue.

General Troubleshooting Steps for Communication Errors

If the WICReset tool is not applicable or doesn't resolve the issue, or if you suspect external factors, a series of general troubleshooting steps can help identify and fix the communication breakdown.

Common Causes & Quick Checks

Potential Cause Quick Fix
Loose Cables / Wi-Fi issues Reconnect cables; restart router.
Printer/Computer Glitch Restart both devices.
Outdated Drivers Update printer software/drivers.
Full Print Queue Clear all pending print jobs.
Firewall/Antivirus Blocking Temporarily disable or adjust security settings.
Corrupted Printer Installation Reinstall the printer.

Detailed Troubleshooting Steps

  1. Verify Physical Connections:
    • USB Printers: Ensure the USB cable is securely plugged into both the printer and the computer. Try a different USB port on your computer or a different USB cable to rule out faulty hardware.
    • Network (Wi-Fi/Ethernet) Printers: Confirm your printer is connected to the network. Check the printer's display for network status. For Wi-Fi, ensure it's connected to the correct network and has a strong signal. For Ethernet, check the cable connection to the router/switch.
  2. Restart All Involved Devices:
    • Printer: Turn off your printer, wait a minute, then turn it back on.
    • Computer: Restart your computer.
    • Router (for network printers): Unplug your Wi-Fi router or modem from power for 30 seconds, then plug it back in and wait for it to fully restart.
  3. Update Printer Drivers and Software:
  4. Clear the Print Queue:
    • Sometimes, a stuck print job can prevent new commands from being sent.
    • Windows: Search for "Printers & Scanners," select your printer, and click "Open queue." Right-click any pending documents and choose "Cancel."
    • macOS: Click the printer icon in the Dock, or go to System Settings > Printers & Scanners, select your printer, and clear any jobs.
  5. Temporarily Disable Firewall or Antivirus:
    • Security software can sometimes mistakenly block printer communication. Temporarily disable your firewall or antivirus to see if it resolves the error. Remember to re-enable it immediately after testing to maintain your system's security. If this works, you may need to add an exception for your printer software in your security settings.
  6. Reinstall the Printer:
    • A fresh installation can resolve deep-seated software conflicts.
    • Windows: Go to Settings > Bluetooth & devices > Printers & scanners, select your printer, and click "Remove." Then, click "Add device" and follow the on-screen instructions.
    • macOS: Go to System Settings > Printers & Scanners, select your printer, and click the minus (-) button to remove it. Then, click the plus (+) button to add it back.
  7. Check Printer Status Lights/Display:
    • Look for any error messages or specific light patterns on your printer's control panel. Consult your printer's manual to understand what these indicators mean, as they can provide specific clues about the internal issue.
  8. Run Built-in Troubleshooters:
    • Windows: Search for "Troubleshoot settings," select "Other troubleshooters," and run the "Printer" troubleshooter.
    • macOS: macOS usually handles printer issues automatically, but ensuring your system software is up-to-date can help.

When to Seek Professional Help

If you've systematically worked through these solutions, including the WICReset tool, and still face communication error 21000068, it might indicate a more serious hardware malfunction. In such cases, contacting your printer manufacturer's support or a qualified printer technician is the best next step. Provide them with the error code and the troubleshooting steps you've already taken.