Check the following points to resolve the issue:

1. To improve the color density, perform the color correction using the machine's display (hereinafter called LCD).
   > Click here to see how to correct the color printing.
2. To adjust the print position of colors for sharper edges, perform the color registration using the LCD.
   > Click here to see how to correct the color printing.
3. Make sure Toner Save mode is off on the LCD or in the printer driver.
4. If the print quality of the black portion is not what you expected, select the Enhance Black Printing checkbox in the printer driver.
5. Clear the Improve Gray Color checkbox in the printer driver.
6. Identify the color causing the issue and put in a new toner cartridge.
   
   To identify the color of the toner cartridge and replace toner cartridge, follow the steps below:

    

   1. > Click here to print the chart. [345KB/ PDF]
   2. Compare your printed document with the printed chart to identify the color causing the issue.
   3. Replace the toner cartridge of the color.
      > Click here to see how to replace the toner cartridge.
7. Install a new drum unit.
   > Click here to see how to replace the drum unit.