toner-lowDCP-8155DN

Brother DCP-8155DN error toner-low: Replacement Guide

The Brother DCP-8155DN error toner-low is a notification that the toner cartridge is reaching the end of its projected capacity. While you may continue to print for a while, we recommend preparing a replacement cartridge to avoid sudden interruptions. High-quality document output requires sufficient toner density. Manage your supplies effectively by keeping this warning in mind.

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Common causes

  • 1Normal Consumption: Toner reached its rated yield.
  • 2Uneven Distribution: Shake the cartridge to redistribute.
  • 3Improper Installation: Toner clicked but not fully seated.
  • 4Sensor Dust: Toner residue obscuring the chip.

Solutions

Quick Diagnosis

This error appears when the software detects that page counts have reached the low-density threshold. It is a proactive alert for office productivity.

Step-by-step solution

  1. Open the machine front access cover.
  2. Remove the drum and toner unit.
  3. Swap the old toner for a fresh cartridge.
  4. Clean the corona wire with the green tab.
  5. Reinstall the unit firmly.

Prevention and Maintenance

Always keep a spare toner cartridge on hand. Ensure the drum unit remains clean by performing the built-in cleaning cycle during every change.

When to call a technician

If you install a new, genuine toner and the machine still flags it as low, it may be a sensor issue needing professional inspection.

Technical specifications

  • Technology: Monochrome Laser.
  • Speed: 40 ppm.
  • Connectivity: USB, Ethernet.
  • Compatible supplies: TN-750 / DR-720.
  • Typical usage: High-volume offices.
  • Official support

Steps to follow

  1. 1

    Open cover

    Open the front cover to access the drum/toner assembly.

  2. 2

    Remove cartridge

    Use the green release lever to pull the toner out.

  3. 3

    Install new

    Insert new toner until it clicks into place.

  4. 4

    Clean drum

    Slide the green tab back and forth to clear the corona wire.

Frequently asked questions

It's an early warning that toner is running out, indicating you should have a spare ready.

Yes, but be aware that quality will eventually drop, leading to faded areas.

Use TN-750 (8,000 page) cartridges for the best results.

Use authentic Brother toners and perform regular maintenance cycles.

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