Please check the following points to solve the problem:
- The drum unit or toner cartridges may not be installed correctly. Re-install the drum unit and toner cartridges.
- The toner cartridge may be damaged. Put in a new toner cartridge as follow:
- Click here to print the chart. [345KB/ PDF]
- Compare your printed document with the printed chart to identify the color causing the problem.
- Replace the toner cartridge of the color. Click here to see the details of how to replace the toner cartridge.
- The drum unit may be damaged. Put in a new drum unit. Click here to see the details of how to replace the drum unit.