Xerox Phaser EX7750 Leaflet

Although the default calibration set meets most users’ needs, the EX7750 allows you 
to choose a calibration set to customize calibration for specialized jobs. 

Calibration allows you to:

• Maximize the color reproduction capabilities of the EX7750.

• Ensure consistent color quality over time.

• Produce consistent output across EX7750 servers.

• Achieve better color matches when reproducing 

, such as PANTONE 

colors or other 

• Optimize the EX7750 for using ColorWise rendering styles (CRDs) and CMYK 

simulations, and for using ICC profiles.

Success in obtaining satisfactory print quality from the EX7750 depends on many 
factors. Among the most important are establishing and maintaining optimal toner 
densities. The 

 is the measure of the light absorbed by a surface. By carefully 

regulating toner densities, you obtain consistent printed color.

Even with a calibrated system, toner density is affected by service settings, humidity, 
and temperature. Density also tends to drift over time. Regular measurement detects 
day-to-day variations in densities, and calibration corrects for them.

Calibration works by creating calibration curves on the EX7750 that compensate 
for the difference between actual (measured) and desired (target) density values. 
These calibration curves are the graphic equivalent of transfer functions, which are 
mathematical descriptions of changes that will be made to the initial data. Transfer 
functions are often graphed as input or output curves.

The EX7750 generates calibration curves after comparing measured values to the final 
target values for each of the four toner colors. The target values are based on the output 
profile you specify.