Brother Toner Error: Color toner cartridge not installed correctly
✅ Usually fixable yourself
Brother says "Toner Error" means one or more toner cartridges are not installed or not installed correctly.
What to try
- Pull out the drum unit.
- Remove all the toner cartridges.
- Put each toner cartridge back into the drum unit firmly.
- Push the drum unit back in and close the cover.
When it needs a technician
Brother's FAQ gives no step beyond reseating the toner cartridges.
Which models show Toner Error
Brother documents this code for models including HL-L8260CDW, HL-L8360CDW, MFC-L8610CDW, MFC-L8895CDW, MFC-L8900CDW, MFC-L8905CDW.
First steps for any printer error
- Write down the exact code before you do anything else — similar-looking codes often mean completely different things.
- Power the printer off, unplug it for a couple of minutes, then power it back on. A surprising number of transient errors clear here.
- Open the covers and check for paper scraps, packaging material, or anything blocking the carriage.
- Check the cartridges or tanks are genuine, correctly seated, and not empty.
- Confirm the printer is plugged directly into a wall outlet, not a power strip or extension lead.
- Check your model’s own manual — codes are model-specific, and the manual is the authority for your machine.
Source: Brother Support FAQ - Toner Error (MFC-L8900CDW). Codes are model-specific, so your own model's manual is the final word. Reviewed October 2026.
Still showing Toner Error?
Tell our printer technician your model and what you've tried. You'll find out whether it's fixable at home or worth repairing at all.
Ask about my printer — $1Eric Paul Amora · Printer & Hardware Repair Technician
Related Brother codes
Unable to Scan XX — Scanner mechanical problemPrint Unable XX — Laser printer mechanical issueDrum End Soon — Drum unit near end of lifeDrum Error — Corona wire dirty or drum not seatedDrum Stop — Drum unit at end of lifeReplace Fuser — Fuser unit due for replacementCooling Down — Machine pausing to coolCondensation — Moisture inside the laser printerSize Error DX — Paper size not usable for 2-sided printingSize Mismatch — Paper in tray is the wrong sizeUnable to Print 46 — Ink absorber almost fullUnable to Clean 46 — Ink absorber pad full