Try to adjust the print density using the [Energy Rank] setting in the Paper Size Setup or the [Print Density] or [Auto Speed Configuration] setting in the Device Settings:

1. Update the firmware using the Firmware Update Tool.

   You can download the Firmware Update Tool from the [Downloads] section of this website.

2. Open the Device Settings in the Printer Setting Tool.

   Refer to "Using the Printer Setting Tool (for Windows)".

3. Change the setting for [Auto Speed Configuration], and then click [Apply].
   To increase the print density: On
   To decrease the print density: Off

   If you want to fine tune, also change the value for [Print Density].
   Available values: -5 - +5



4. Open the Paper Size Setup in the Printer Setting Tool.


5. Select the currently registered paper size and click [Edit...].
    


6. Click [Advanced Printing Adjustments...].
   


7. Change the value for [Energy Rank], and then click [OK].
   Available values: 1 – 30
   


8. Try to print again and check the print result.
   If the print result is not as expected, repeat steps 4 – 8.