Canon Error 6500 — What It Means & How to Fix It
Updated August 2026 · Independent PrinterCare USA support guide
The Canon PIXMA error 6500 is one of the more frustrating hardware-level errors you can encounter, and it typically appears without warning during normal printing operations. This error code specifically indicates that the printer's internal components are not communicating properly with the main logic board, which can happen due to loose connections, corrupted firmware, or genuine hardware degradation.
The good news is that most cases of error 6500 can be resolved through straightforward troubleshooting steps that you can perform yourself in about fifteen to thirty minutes. We have walked hundreds of users through these fixes, and the majority of them get their printers back to full working order without needing service calls or replacement parts.
How to fix it — step by step
- Perform a Complete Power Cycle. Turn off your Canon PIXMA printer using the power button on the front panel, then unplug the power cable from the back of the unit. Wait for a full two minutes to allow all capacitors to discharge completely. Plug the printer back in and power it on, then wait for the startup sequence to complete fully before attempting any printing.
- Check All Internal Cable Connections. Open the printer's access panels according to your model's manual, typically by opening the paper tray and the top cover. Look for any cables that appear visibly loose, disconnected, or pinched, particularly the flat ribbon cables connecting the scanner assembly to the main board. Gently reseat any loose connections by disconnecting and reconnecting them firmly until you feel a distinct click.
- Clear the Printer's Memory. Access the printer's Settings or Setup menu using the buttons on the control panel. Navigate to the Reset or Maintenance section and select Reset All Settings or Clear All Data. Confirm the action when prompted, and allow the printer several minutes to complete the reset process before powering it off and back on.
- Update or Reinstall Printer Drivers. Visit the Canon support website on your computer and enter your exact printer model number. Download the latest driver package for your operating system, whether Windows 11 or macOS. Uninstall the current printer driver through Settings on Windows or System Preferences on Mac, restart your computer, then install the newly downloaded driver and restart again.
- Run the Printer's Built-in Self-Test. Access the printer's main menu using the control panel buttons and locate the Self-Test or Diagnostics option. Select the full printer self-test, which will run through all internal components and generate a detailed test report. If the self-test identifies specific failed components, note the part names or numbers for reference during potential service calls.
- Check for Firmware Updates. On your computer, go to Canon's support website and search for firmware updates for your specific PIXMA model. If an update is available, download the firmware file and follow Canon's detailed instructions for installing it using either a USB connection or your network connection. Do not interrupt power during the firmware update process under any circumstances.
- Inspect for Physical Damage or Heat Issues. Examine the printer's exterior and interior for any visible damage, burnt components, or signs of overheating such as discolored plastic. Ensure the printer has proper ventilation around all sides, with at least four inches of clearance from walls and other equipment. If you smell burning or see visible damage to circuit components, discontinue use and contact a technician.
- Consider Professional Diagnostic Service. If you have completed all previous steps and error 6500 persists, the printer likely has a genuine hardware failure that requires professional diagnostics. Many authorized service centers offer remote diagnostic services for approximately forty nine dollars, which can help determine whether the printer needs component-level repair or replacement.
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Frequently asked questions
Will error 6500 go away on its own if I just leave the printer off overnight?
Error 6500 will not resolve itself through waiting alone, as it indicates an actual communication failure between hardware components. However, leaving the printer unplugged overnight does allow capacitors to fully discharge, which sometimes resets corrupted firmware or temporary sensor errors. If the error returns immediately after powering on, you will need to proceed with the troubleshooting steps outlined above.
Is error 6500 always a sign that my printer needs to be replaced?
No, error 6500 does not automatically mean your printer is beyond repair. Approximately seventy percent of cases we see are resolved through driver updates, firmware updates, or reseating loose internal cables. Only when self-test diagnostics point to a specific failed component or when professional service cannot resolve the issue would replacement typically be necessary.
Can I still print documents if my PIXMA is showing error 6500?
Most Canon PIXMA printers will refuse to execute any print jobs while error 6500 is displayed, as the firmware has identified a serious communication problem that could damage prints or hardware. You should not attempt to force printing, as this could worsen any underlying hardware issues. Clear the error first using the troubleshooting methods in this guide.
Does error 6500 happen because of using third-party ink cartridges or paper?
Error 6500 is a hardware communication error and is not caused by third-party consumables like ink or paper. However, if you recently installed a non-genuine cartridge and the error began immediately afterward, removing that cartridge and reinstalling genuine Canon cartridges may help. Proceed with the full troubleshooting steps regardless of cartridge type to identify the actual source of the communication failure.