5011PIXMA TR4720

Canon PIXMA TR4720 error 5011: Troubleshooting Scanner Issues

The Canon PIXMA TR4720 error 5011 is a notification regarding a scanner hardware malfunction. It occurs when the scanner unit fails its self-diagnostic test upon initialization. Why is my Canon PIXMA TR4720 showing error 5011 when scanning? Most commonly, this is due to a physical obstruction in the scanner path or a failure in the internal motor responsible for movement.

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Common causes

  • 1Mechanical Jam: Debris obstructing the path of the scanner carriage.
  • 2Sensor Failure: The CIS sensor cannot detect the home position.
  • 3Ribbon Cable Issue: A loose or damaged data cable inside the scanner unit.
  • 4Motor Fatigue: The scanner motor is unable to provide the torque needed to move the carriage.

Solutions

Quick Diagnosis

If this error occurs on startup, the scanner carriage is likely stuck. Listen carefully for grinding or ticking sounds while the printer initializes. If you hear these noises, the issue is certainly mechanical.

Step-by-step Solution

  1. Hard Reset: Disconnect the printer from power and leave it for a few minutes.
  2. Clear Path: Open the lid and ensure there is nothing sitting on the glass surface or jamming the unit.
  3. Rest: Leave the machine unplugged to allow capacitors to discharge.
  4. Power Cycle: Reconnect the device. If the motor is no longer jammed, it should calibrate correctly.

Prevention and Maintenance

Keep the printer surface free of objects. Regularly clean the scanner glass with a dry, non-abrasive cloth to ensure the scanner sensor doesn't drag against dust particles. Do not move the printer while it is in active operation.

When to Call a Technician

If the power cycle fails to fix the 5011 error, the scanner motor or the flat ribbon cable connecting it to the mainboard is likely faulty. This requires technical expertise and parts replacement.

Device Technical Specs

  • Technology: CIS (Contact Image Sensor).
  • Resolution: 1200 x 2400 dpi.
  • Speed: ~15 seconds per A4 page.
  • Connectivity: USB, Wi-Fi, Ethernet.
  • Compatible Consumables: Canon PG-275 / CL-276.
  • Recommended Use: Scanning, copying, and documents.
  • Official Drivers / Firmware

Steps to follow

  1. 1

    Power off

    Turn off the printer and disconnect it from the power outlet for two full minutes.

  2. 2

    Check for obstructions

    Inspect the scanner bed under the lid to ensure no objects or paper scraps are blocking the scanner carriage.

  3. 3

    Power up

    Plug the device back in and turn it on, allowing the scanner to perform its startup self-test.

Frequently asked questions

Error 5011 indicates a scanner hardware fault. It usually occurs when the sensor cannot return to its home position due to a mechanical obstruction or a failed motor.

If it does not resolve with a power reset, it could indicate a failed scanner motor, which typically requires a professional service visit.

No, error 5011 is strictly related to the scanner system. Printing functions should generally remain unaffected unless the hardware error cascades.

Avoid sudden movements of the printer and keep the glass clean to reduce the load on the scanning sensor.

Canon PIXMA TR4720 error 5011: Troubleshooting Scanner Issues | Vimazdev