No PaperMFC-L6900DW

Fix 'No Paper' Error on Brother MFC-L6900DW - Troubleshooting

The 'No Paper' error occurs when the Brother MFC-L6900DW sensor fails to register paper in the input tray, even when it is loaded. This fault is often caused by dust accumulation, blocked sensors, or misaligned paper guides. The primary solution involves removing the paper, inspecting the sensor, and cleaning the feed rollers.

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Common causes

  • 1Accumulation of paper dust on the paper-end sensor.
  • 2Worn-out feed rollers or residue loss of traction.
  • 3Misalignment of the tray's side paper guides.
  • 4Use of paper with a weight higher than supported by the unit.

Solutions

Diagnóstico rápido

Check if the machine detects the paper by gently shifting the tray. If the message persists after opening and closing the tray with appropriate force, a sensor is likely blocked by lint or toner dust.

Solución paso a paso

  1. Remove the paper tray completely from the printer chassis.
  2. Inspect the internal sensor at the back; clean it gently with a dry cotton swab.
  3. Clean the feed rollers using a lint-free cloth lightly dampened with isopropyl alcohol.
  4. Align the guides by adjusting them firmly against the edges of the paper stack without bending it.

Prevención y mantenimiento

  • Paper Quality: Use standard 75-90 g/m² paper; ultra-thin or damp paper can cause feed errors.
  • Monthly Cleaning: Shake the paper tray periodically to prevent dust buildup.
  • Storage: Keep paper in a dry place; humidity causes sheets to stick together.

Cuándo llamar a un técnico

If the error persists after cleaning sensors and rollers, the pick-up motor or main control board may have failed, requiring professional repair.

Ficha técnica del equipo

  • Technology: Monochrome Laser
  • Speed: Up to 52 ppm
  • Connectivity: Wi-Fi Direct, Gigabit Ethernet
  • Input capacity: Up to 520 sheets (main tray)
  • Compatible consumables: TN-3442 / TN-3480 series toner
  • Recommended use: Heavy-duty office use
  • Official drivers / firmware

Steps to follow

  1. 1

    Tray Removal

    Physically remove the paper tray from the device.

  2. 2

    Sensor Cleaning

    Use compressed air or a swab to clean the paper sensor area.

  3. 3

    Roller Maintenance

    Clean the rubber rollers with a lint-free cloth and alcohol.

  4. 4

    Loading Verification

    Reinsert paper ensuring edges are aligned and straight.

Frequently asked questions

It is usually due to dirty sensors or rollers failing to grip the first sheet.

It's not critical, but it prevents work. It is almost always solved with a simple sensor cleaning.

This model uses TN-3442 or TN-3480 series toner. Always choose originals to avoid print quality issues.

Keep the printer in a clean area and cover it if it won't be used for long periods.