Printer will display "Waste Toner Tank Full/Not Installed" error message if the waste tank is full of toner or not installed.
- Open the waste tank door and check for the waste toner tank.
- If the tank is full or not intalled, install a new tank.
If you have user guide, it will show you how to install the waste toner tank.
Sometimes you will also get this error message if the Waste Toner sensor is covered with toner powders.
for user manual just click here:
Remove your waste tank and look for the black plastic on the right side after removing the waste tank.
You sould find small openings on each side in the black casing.
Use Q-tips or thin cotton object to clean the inside the small opening.
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For any more question just ask me.