0x0081d68bOfficeJet 200

HP OfficeJet 200 error 0x0081d68b: Sensor repair

HP OfficeJet 200 error 0x0081d68b occurs when the unit fails to sense the paper width during the paper feed process. Users often ask why does my printer show HP error 0x0081d68b after a paper jam, indicating the sensor is likely contaminated.

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Common causes

  • 1Encoder dirt: Ink or dust buildup on the encoder strip.
  • 2Misalignment: Paper guides failing to seat paper edges correctly.
  • 3Sensor blockage: Obstructions preventing the light beam from reaching the sensor.
  • 4Media issues: Too-thick paper failing to register properly.

Solutions

Diagnóstico rápido

The 0x0081d68b code points directly to the paper-width detection system. If your paper is properly seated but the unit still reports an error, it is almost certainly a dirty encoder strip or a physical obstruction in the sensor's path.

Solución paso a paso

  1. Guide Adjustment: Ensure the sliding paper guides are touching the paper edge properly.
  2. Encoder Cleaning: Clean the transparent encoder strip running behind the printhead carriage with a dry, lint-free cloth.
  3. Debris removal: Scan the base of the printer tray for stray fragments or dust.
  4. Power cycle: Restart the unit to allow the sensor to recalibrate.

Prevención y mantenimiento

Avoid using label sheets or thick cardstock, as they shed debris that collects on the sensitive encoder strip. Regular cleaning of the print path keeps these optical components functional.

Cuándo llamar a un técnico

If the error persists after cleaning the encoder strip and adjusting the guides, the optical sensor itself may have failed, requiring professional hardware repair.

Ficha técnica del equipo

  • Technology: Portable Inkjet.
  • Speed: 10 ppm.
  • Connectivity: Wi-Fi, USB.
  • Input capacity: 50 sheets.
  • Compatible consumables: HP 62 Series Cartridges.
  • Recommended use: Mobile professional.
  • Official Drivers/Firmware

Steps to follow

  1. 1

    Check paper guides

    Slide the paper width guides to their maximum position and reset them against the paper.

  2. 2

    Clean encoder strip

    Gently clean the transparent plastic strip running through the carriage path.

  3. 3

    Reboot

    Restart the device to recalibrate sensor detection.

Frequently asked questions

This error is triggered when the printer width-sensors cannot correctly detect the paper size due to debris or misaligned media guides.

If the sensor is obstructed, it will report errors for all media types until the underlying blockage is cleared.

A clear plastic strip that allows the printer carriage to calculate position and width; dirt on this strip often causes detection errors.

Keep the print path free of dust and ensure you never load damaged or adhesive-backed paper.