Error code E3 on a Canon printer typically indicates a paper jam or a paper-related issue. When this error occurs, the printer’s sensors detect a problem with the paper feed or paper path. Here’s how to troubleshoot and resolve error code E3:

Turn Off the Printer: Start by turning off the printer and disconnecting it from the power source. This ensures your safety while troubleshooting and prevents any potential damage to the printer.

Check for Paper Jams: Open the printer’s cover or access panel and carefully inspect the paper path for any jammed or crumpled paper. Gently remove any paper that you find. Ensure that there are no small bits of torn paper left behind that could trigger the error again.

Check the Paper Tray: If your printer has a paper tray or cassette, make sure the paper in the tray is aligned properly and not overfilled. Adjust the paper guides to match the paper size you are using.

Check the Rear Tray (if applicable): Some Canon printers have a rear paper feed tray. Ensure that there are no obstructions or paper jams in the rear tray.

Reset the Printer: After clearing any paper jams or obstructions, reconnect the printer to the power source and turn it on. Sometimes, simply resetting the printer can clear the error.

Check for Foreign Objects: Inspect the printer’s paper path for any foreign objects, such as paper clips or debris, that might be causing the error.

Clean the Rollers: Over time, paper dust and debris can accumulate on the printer’s rollers, leading to paper feed problems. Use a lint-free cloth lightly dampened with water to clean the rollers. Be sure they are completely dry before using the printer again.

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Perform a Printer Self-Test: Some Canon printers have a self-test or diagnostic mode that can help identify the source of the problem. Refer to your printer’s user manual for instructions on how to access and perform a self-test.

Check for Sensor Issues: If the problem persists, there may be an issue with one of the paper sensors in the printer. This may require professional service, so contact Canon’s customer support or a certified technician for further assistance.

Avoid Overloading the Tray: Make sure you do not overfill the paper tray or cassette with too many sheets, as this can lead to paper jams.

Error code E3 is usually related to a physical issue with paper handling. The steps above should help you identify and resolve the problem. If you’re unable to clear the error after following these steps. It’s advisable to contact Canon printer support or a qualified technician for further assistance.