replace-tonerDCP-8155DN

Fixing Brother DCP-8155DN Replace Toner Error

Brother DCP-8155DN error replace toner is a common maintenance flag triggered by the printer's internal page count. It does not always mean the toner cartridge is empty. Knowing how to reset this flag can save significant costs in office supplies.

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Common causes

  • 1Internal page counter limit reached.
  • 2Dust on internal optical sensors.
  • 3Loose sensor gear.
  • 4Cartridge chip synchronization error.

Solutions

Quick Diagnostics

The printer displays 'Replace Toner' and refuses to print despite quality still being acceptable.

Step-by-Step Solution

  1. Keep printer ON and open the front cover.
  2. Press Clear/Back button.
  3. Follow prompts to select cartridge type (TN750/TN780).
  4. Reset counter.

Prevention and Maintenance

Use high-yield toners for longevity. Shake cartridges gently when low.

When to Call a Technician

If the reset does not work or if error messages regarding the drum (DR-720) appear, replace the unit.

Device Technical Sheet

  • Technology: Monochrome Laser.
  • Speed: 42 ppm.
  • Connectivity: USB/Ethernet.
  • Consumable: TN750 or TN780 toner.
  • Brother Support

Steps to follow

  1. 1

    Open cover

    Open front panel.

  2. 2

    Reset mode

    Press clear button.

  3. 3

    Confirm

    Reset counter.

Frequently asked questions

It is a page counter limit alert.

Yes, as long as print quality is fine.

TN750/TN780 original units.

Clear out excess toner dust every 10k pages.

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