> Before You Start Printing > Getting the Best Colors from Your Machine
4WK7-001

Getting the Best Colors from Your Machine

You need to calibrate the colors periodically. Check the solutions below.
The density and tone of colors may change as you print large volumes of the same pages, and even if you are printing the same image, slight variations in the shades of colors may become apparent. This is a characteristic of this machine. You need to calibrate the colors periodically to compensate for the difference in colors.
Effect of calibration
Types of calibration
Calibration on the printer
Calibration on the imagePRESS Server
Order of calibration

Effect of calibration

You can restore your printer and imagePRESS Server to the predefined standard conditions by calibrating the colors, allowing you to continue printing in consistent colors.

Types of calibration

There are the following types of calibration. You can combine some of them depending on the degree of color difference.

Calibration on the printer

Automatic gradation calibration
A change in the usage environment (temperature or humidity), successive printing, and some other conditions affect and cause fluctuations in the maximum density and balance of the CMYK toner to be printed. Automatic gradation calibration is a function for maintaining the best density balance at all times.
How to Perform Automatic Gradation Calibration
Shading correction
This function corrects uneven color densities that may occur in a halftone area of a printed image.
 "Adjustment for Image Quality and Finishing (Calibration)" > "Adjust Image Quality" > "Shading Correction" in the User's Guide
Automatic color tone correction
You can benefit from this function if you use it when you notice a change in the color balance of secondary or higher colors (combination of CMYK) after automatic gradation calibration has been performed regularly. You can use automatic color tone correction when the Duplex Color Image Reader Unit is mounted.
 "Adjustment for Image Quality and Finishing (Calibration)" > "Adjust Image Quality" > "Automatic Color Tone Correction" in the User's Guide

Calibration on the imagePRESS Server

The imagePRESS Server determines the CMYK values for a print job on the assumption that the toner density of the printer is in the standard balanced state. In this calibration mode, the output density for each CMYK color is measured to calibrate the gaps with the standard values.
How to Calibrate the imagePRESS Server

Order of calibration

What is the Best Order for Calibration?