Color Adjustment
- Overview of Color Adjustment
Color Matching: Matching the Target Colors
- About Color Matching
- Executing Color Matching
Color Management: Stabilizing Color Reproducibility
- About Color Management
- Color Management Adjustment Flow
- Performing Quality Adjustment
- Image Quality Adjustment Using Color Centro
Adjusting the Image Quality
- Controller Calibration
- Executing Advanced Controller Calibration (Exact Color)
- Executing Advanced Controller Calibration (G7)
- Registering the Output Profile (Printer Profile)
- Color Validation
- Spot Color: Printing in Special Colors
- Registering Alternative Colors (Changing RGB colors to CMYK colors)
- Registering Alternative Colors (Changing CMYK Colors to Different CMYK Colors)
- Tone Curve: Adjusting the Brightness and Contrast
- Color Default Settings
- Register a Color Configuration
- Changing the Screen
- Auto Image Adjustment Function

Color Density Control: Color Density Control Flow

Measure the patch density of γ correction charts using the density sensor mounted on Relay Unit RU-518, and perform calibration.

Instead of the γ correction by the internal IDC sensor, the density is corrected by using the printed chart image. This enables secondary transfer, fusing, and correction with each paper's characteristics taken into consideration.

Tips

Manual calibration is unnecessary. Note that in that case, on the touch panel of the main body, press Adjustment - Quality Adjustment - Color Density Control - Basic Setting, and then set Periodical Adj. Execution to ON. Color Density Control is not selectable unless Use Color Density Control is set to ON.

The color density control consists of the following three adjustments:

Details of color density control	Description
Basic Settings	You can enables the color density control and set the execution timing, etc. When using the color density control function (Adjustment of color sensor for each paper type / Color density manual control), always set the Use Color Density Control to ON. To automatically perform calibration using Relay Unit RU-518, set the Periodical Adj. Execution to ON.
Each Paper Type Color Sensor Adjustment	You can measure and register the density adjustment data corresponding to each paper type. Perform optionally this adjustment as needed. To use special paper or increase the accuracy of the automatic adjustment, the adjustment of color sensor for each paper type is recommended.
Color density manual control	You can manually adjust the color density.

Details of color density control

Description

Basic Settings

You can enables the color density control and set the execution timing, etc.

When using the color density control function (Adjustment of color sensor for each paper type / Color density manual control), always set the Use Color Density Control to ON.

To automatically perform calibration using Relay Unit RU-518, set the Periodical Adj. Execution to ON.

Each Paper Type Color Sensor Adjustment

You can measure and register the density adjustment data corresponding to each paper type.

Perform optionally this adjustment as needed.

To use special paper or increase the accuracy of the automatic adjustment, the adjustment of color sensor for each paper type is recommended.

Color density manual control

You can manually adjust the color density.

Image quality adjustment flow and the position of this adjustment

In the pre-output image quality adjustment flow, this adjustment is positioned shown below.
Perform the previous adjustment before proceeding with this adjustment.
When Integrated Color Care Unit IQ-501 is mounted on the machine, this adjustment is positioned in the same way as the above.

Reference

To not continuously perform the series of adjustment of the image quality adjustment flow, perform Gamma Automatic Adj., and then resume from the next adjustment.

Image quality adjustment flow	Position of this adjustment
Image quality adjustment flow	Previous adjustment	This adjustment	Next adjustment
Adjustment flow when changing the screen	Density Balance Adjustment	This adjustment (Basic settings / Adjustment of color sensor for each paper type (^) / Color density manual control) ^: Optional	Gray balance adjustment
Regular adjustment flow: Normal	This adjustment (Basic settings) Set the Periodical Adj. Execution to ON.
Regular adjustment flow: High Precision	Maximum Density Adjustment	This adjustment (Basic settings / Adjustment of color sensor for each paper type (^) / Color density manual control) ^: Optional	- (None)