The Canon PIXMA TS6420 error can stop your printing, scanning, or copying tasks unexpectedly. Whether your printer displays an error code, flashes warning lights, refuses to connect to Wi-Fi, or won’t recognize ink cartridges, most problems can be resolved without professional repair. Understanding what causes these errors and following the correct troubleshooting steps can help restore your printer quickly.

This guide covers the most common Canon PIXMA TS6420 errors, explains their causes, and provides practical, step-by-step solutions for Windows and macOS users. You’ll also learn preventive maintenance tips to reduce future printer issues.

What You’ll Learn

• Common Canon PIXMA TS6420 error messages
• Causes of printer errors
• How to fix paper jams
• Wireless connection troubleshooting
• Ink cartridge solutions
• Driver and firmware fixes
• Resetting the printer
• Preventive maintenance tips
• Frequently asked questions

Common Canon PIXMA TS6420 Error Messages

The Canon PIXMA TS6420 may display different error messages depending on the issue. Identifying the exact error is the first step toward fixing it.

Error Type	Possible Cause
Printer Offline	Network or communication issue
Paper Jam	Jammed or misaligned paper
Support Code Error	Hardware or software problem
Ink Cartridge Error	Cartridge not installed correctly
Communication Error	USB or Wi-Fi connection failure
Scanner Error	Driver or scanning software issue

Many support codes provide additional information on the printer’s LCD screen or your computer.

How to Fix Canon PIXMA TS6420 Error

Most printer errors can be solved by following a systematic troubleshooting process.

Restart the printer.

Power off the printer.

Unplug the power cable for one minute.

Reconnect the cable and turn the printer back on.

Restart your computer before trying another print job.

Check the printer display.

Read the complete error message or support code shown on the LCD screen.

Many canon errors clearly indicate problems such as

• Paper jam
• Empty ink cartridge
• Incorrect cartridge installation
• Cover left open
• Wireless connection issue

Correct the reported issue before continuing.

Verify Printer Connections

If using USB:

• Disconnect the USB cable.
• Reconnect it securely.
• Try another USB port.

If using Wi-Fi:

• Ensure the printer is connected to the same wireless network as your computer.
• Restart your router if necessary.

Clear the print queue.

A stuck print job can prevent new documents from printing.

Windows

• Open Settings.
• Select Printers & Scanners.
• Choose Canon PIXMA TS6420.
• Open Print Queue.
• Cancel all pending jobs.

macOS

• Open System Settings.
• Select Printers & Scanners.
• Open the print queue.
• Delete any stalled print jobs.

Fix Canon PIXMA TS6420 Paper Jam Error

Paper jams are among the most common causes of printer errors.

Common Causes

• Wrinkled paper
• Incorrect paper size
• Overloaded paper tray
• Dirty feed rollers

How to Remove a Paper Jam

1. Turn off the printer.
2. Open the rear cover.
3. Remove jammed paper carefully.
4. Check for small paper pieces.
5. Reload paper properly.
6. Restart the printer.

Never pull paper with excessive force, as this may damage internal components.

Resolve Canon PIXMA TS6420 Ink Cartridge Errors

If the printer cannot detect an ink cartridge, inspect the installation.

Check that:

• The cartridge is compatible.
• Protective tape has been removed.
• The cartridge clicks securely into place.

If necessary:

• Remove the cartridge.
• Clean the electrical contacts gently.
• Reinstall the cartridge.
• Restart the printer.

Running a nozzle check can also identify clogged print heads.

Fix Canon PIXMA TS6420 Wi-Fi Connection Errors

Wireless connectivity issues often occur after changing routers or network passwords.

Reconnect the printer by:

1. Opening Wireless LAN Settings.
2. Selecting your Wi-Fi network.
3. Entering the correct password.
4. Confirming the connection.

If the signal remains weak:

• Move the printer closer to the router.
• Reduce interference from other wireless devices.
• Restart both the printer and router.

Update Canon PIXMA TS6420 Drivers and Firmware

Outdated drivers or firmware can trigger unexpected printer errors.

Update:

• Printer driver
• Scanner driver
• Printer firmware

Installing the latest software improves compatibility with Windows 11, Windows 10, and macOS while fixing known bugs and performance issues.

If problems continue, uninstall and reinstall the Canon printer software.

Understanding Canon PIXMA TS6420 Support Codes

Canon printers display support codes to help identify specific issues.

Some common categories include:

• Paper feed problems
• Ink system errors
• Communication failures
• Scanner issues
• Internal hardware faults

Always note the complete support code before troubleshooting, as it helps determine the correct solution.

How to Reset Canon PIXMA TS6420

Resetting the printer can clear temporary software glitches.

Soft Reset

1. Turn off the printer.
2. Disconnect the power cord.
3. Wait one minute.
4. Reconnect the power.
5. Turn the printer back on.

Restore Default Settings

From the printer menu:

Settings → Device Settings → Reset Settings

Keep in mind that restoring factory settings removes saved Wi-Fi networks and custom preferences.

Prevent Canon PIXMA TS6420 Errors

Routine maintenance helps reduce unexpected printer problems.

Follow these best practices:

• Use recommended paper types.
• Store ink cartridges properly.
• Print regularly to prevent clogged nozzles.
• Clean the printer periodically.
• Keep printer drivers updated.
• Avoid overloading the paper tray.
• Install firmware updates when available.

Consistent maintenance improves print quality and extends the life of your printer.

Quick Answers

Why is my Canon PIXMA TS6420 showing an error?

Most errors are caused by paper jams, communication problems, outdated drivers, Wi-Fi issues, or improperly installed ink cartridges.

How do I reset my Canon PIXMA TS6420?

Turn off the printer, unplug it for one minute, reconnect the power, and restart it. You can also restore factory settings from the printer’s menu.

Why is my Canon PIXMA TS6420 offline?

Your printer may have lost its Wi-Fi connection, the print queue may contain stalled jobs, or the printer driver may need updating.

Frequently Asked Questions

Why won’t my Canon PIXMA TS6420 print?

Check the print queue, ink levels, paper supply, printer status, and network connection. Restarting the printer often resolves temporary issues.

Can outdated drivers cause Canon PIXMA TS6420 errors?

Yes. Old drivers may cause communication failures, printing errors, and scanning problems. Updating the driver usually improves performance.

Why does my printer keep displaying support codes?

Support codes indicate specific hardware or software issues. Recording the code before troubleshooting helps identify the correct solution.

Can third-party ink cartridges cause errors?

Some third-party cartridges may not be fully compatible and can trigger cartridge recognition or print quality issues.

How often should I maintain my Canon PIXMA TS6420?

Perform basic maintenance every one to three months, including cleaning the print head, checking paper feed rollers, and installing firmware updates.

Conclusion

A Canon PIXMA TS6420 error doesn’t necessarily mean your printer requires repair or replacement. Most issues—including paper jams, Wi-Fi connectivity problems, ink cartridge recognition failures, outdated drivers, and temporary software glitches—can be resolved with a few straightforward troubleshooting steps. Regular maintenance, updated firmware, and proper printer care will help keep your Canon PIXMA TS6420 operating reliably and minimize future errors.