194 7 Maintenance
7.9 Adjusting Color Density
When colors look off, adjust the color density by performing color calibration.
Color calibration allows you to maintain the consistency of print quality.
To perform color calibration, print the Calibration Chart from the printer, compare the chart 
with the supplied “Color Sample for gray level correction” (hereinafter referred to as “Color 
Sample”) to determine the correct density, and enter the value on the printer using the 
control panel.
By performing the calibration, you can adjust the tones of all process colors (cyan, magenta, 
yellow, and black) in areas of high, middle, and low density.
If you want to return the values of all colors to defaults, set all values to "0". Setting the 
values to "0" disables the color calibration during printing.
Note
• If color calibration does not help to maintain the color consistency, contact our Customer Support Center 
or your dealers.
• Setting the density values to "0" does not always provide the print quality of the printer right after you 
purchased it. Using the printer for an extended period of time can cause print quality to change, affected 
by factors such as the deterioration of the printer, change in the installation environment, and the 
number of printed sheets to date.
Calibration Procedure
The following is the basic procedure for color calibration.
Before Getting Started
• Have the Color Sample 
ready.
• Load A4-size paper in the 
bypass tray in portrait 
orientation.
Print the Calibration Chart.
Control Panel
Calculate the density of 
each color based on 
the Calibration Chart 
and Color Sample.
Enter the density values.
Control Panel
Refer to
"Printing the 
Calibration Chart" (P. 
Refer to
"Obtaining the Density 
Values" (P. 195)
Refer to
"Entering the Density 
Values" (P. 198)
Refer to
"Loading Paper in the 
Bypass Tray" (P. 81)