5205PIXMA Pro9000

Canon PIXMA Pro9000 Error 5205: Position Sensor Fix

The Canon PIXMA Pro9000 error 5205 is triggered when the print carriage position sensor encounters a reading fault. When users ask why does Canon PIXMA Pro9000 have error 5205, they often find that simple environmental debris is the root cause. This guide outlines how to restore proper operation by cleaning the internal optical tracking components.

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Common causes

  • 1Ink mist accumulation on the optical encoder strip.
  • 2Mechanical obstruction in the carriage path.
  • 3Failing optical sensor on the carriage unit.
  • 4Misalignment caused by physical impact.

Solutions

Quick Diagnosis

If the carriage strikes the sides of the printer, the encoder strip is likely obscured, preventing the sensor from detecting movement boundaries.

Step-by-step Solution

  1. Disconnect power.
  2. Carefully clean the encoder strip (transparent belt) using a lint-free cloth and isopropyl alcohol.
  3. Verify that the carriage moves smoothly after cleaning.
  4. Reconnect and initiate a power-on sequence.

Prevention and Maintenance

Regularly dusting the internal cavity prevents sensor fouling. Avoid manual movement of the carriage, which can put the strip out of alignment.

When to Call a Professional

If the strip is damaged or scratched, it must be replaced by a technician to prevent permanent printing defects.

Equipment Specs

  • Technology: 8-Inkjet System.
  • Performance: Professional A3+ prints.
  • Connectivity: USB.
  • Consumable: CLI-8 series.
  • Use Case: Pro Photography.
  • Official Driver

Steps to follow

  1. 1

    Access Encoder Strip

    Open the printer casing and locate the transparent encoder strip running along the print carriage.

  2. 2

    Clean Strip

    Gently wipe the strip with isopropyl alcohol to remove ink buildup or grease.

  3. 3

    Verify Calibration

    Power the printer on and listen for normal initialization sounds without carriage striking.

Frequently asked questions

The 5205 error implies the sensor on the printhead assembly is failing to read the encoder strip correctly due to contamination.

No, persistent sensor errors can lead to mechanical damage as the printhead carriage may strike the printer frame.

Always use genuine CLI-8 ink sets for best reliability and sensor-friendly performance.

Keep the printer in a clean environment and wipe the encoder strip whenever you perform deep printhead maintenance.

Canon PIXMA Pro9000 Error 5205: Position Sensor Fix | Vimazdev