1407MAXIFY GX5020

Canon MAXIFY GX5020 Error 1407: Sensor Fault

The Canon MAXIFY GX5020 error 1407 occurs when the printer logic board receives contradictory or invalid data from its internal status sensors. These sensors monitor components such as the front lid, paper trays, and internal guards. When a sensor state remains unverified, the machine halts operation to prevent potential operational errors.

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Common causes

  • 1Sensor flag stuck due to dust or paper scrap.
  • 2Door or tray not fully closed.
  • 3Debris affecting sensor optical range.
  • 4Main sensor board failure.

Solutions

Quick Diagnosis

Check if the front door or trays are closed correctly. If you've recently performed maintenance, a small piece of paper or dust might have triggered a sensor (flag) to stick in an open/closed state.

Step-by-Step Solution

  1. Check Enclosures: Verify that the front door and paper tray are properly seated and latched.
  2. Manual Inspection: Look for small plastic flags or switch buttons that might be stuck. Gently flick them to ensure they move freely.
  3. Power Cycle: Turn off the printer and turn it back on to force the sensors to perform a new state check.

Prevention and Maintenance

Always handle trays gently. Keeping the interior of your printer free from paper dust or debris prevents sensors from sticking, maintaining high system reliability.

When to Contact a Technician

If you have verified all sensors move freely and the error persists, there may be a fault with the main sensor interface board requiring professional repair.

Equipment Technical Data

  • Technology: MegaTank Inkjet
  • Component: Status Detection Sensors
  • Consumable: GI-26 Ink System
  • Recommended Use: Professional Office
  • Official Canon Support

Frequently asked questions

The 1407 error occurs when the printer cannot verify the status of its sensors, such as lid or paper tray detectors, leading to a system lockout.

Typically, this is caused by a dirty sensor or a misaligned tray. Checking all internal sensors for blockages usually clears the code.

The ink does not cause this error; however, using genuine ink helps prevent internal leaks that can contaminate sensors.

No, it is a reporting error. Once the sensors report back correctly, the machine will return to its ready state.