Controller Calibration (Regular Adjustment Flow (High Accuracy/Adjustment Flow When Changing the Screen))
Controller calibration is essential to ensure that colors are accurately reproduced when using this machine, because color reproducibility can change from day to day.
Measure the output density of C, M, Y, and K colors on a chart using the instrument, and give the results to the Controller as feedback. Based on this feedback, the Controller automatically calibrates the output density with reference to the predefined target density. This calibration enables output close to the target density.
Precautions
Color output density can fluctuate over the course of a day due to humidity, temperature, and other conditions. Paper type, thickness, and screen may also affect color output density.
Perform the advanced Controller calibration several times a year. For details, refer to Advanced Controller Calibration (Regular Adjustment Flow (High Accuracy/Adjustment Flow When Changing the Screen)).
To reproduce stable colors, make other image quality adjustments as necessary, such as when changing screens or papers or when hue is important. For details, refer to Items to Adjust and When to Perform.
If neither controller calibration nor Items to Adjust and When to Perform improves color stability, creating a profile may help solve the problem.
Position of the Controller Calibration in the Regular Adjustment Flow
The controller calibration is required when the gamma automatic adjustment and maximum density adjustment do not improve print results.
In the pre-output image quality adjustment flow, this adjustment is positioned shown below.
Gamma automatic adjustment
Maximum density adjustment
Controller calibration (This adjustment)
Controller calibration work flow
STEP 1: Set and Register Paper Type (Tack Plain)
STEP 2: Execute the Controller Calibration
Advanced controller calibration (Exact Color or G7 calibration)
For details about the gamma automatic adjustment, refer to Gamma Automatic Adjustment (Regular Adjustment Flow (High Accuracy/Adjustment Flow When Changing the Screen)).
For details about the maximum density adjustment, refer to Maximum Density Adjustment (Regular Adjustment Flow (High Accuracy)).
For details about the advanced controller calibration, refer to Advanced Controller Calibration (Regular Adjustment Flow (High Accuracy/Adjustment Flow When Changing the Screen)).
Position of the Controller Calibration in the Adjustment Flow When Changing the Screen
The gamma automatic adjustment is required when the selection of screen, gamma adjustment, and density balance adjustment do not improve print results.
Screen selection
Gamma automatic adjustment
Density Balance Adjustment
Controller calibration (This adjustment)
Controller calibration work flow
STEP 1: Set and Register Paper Type (Tack Plain)
STEP 2: Execute the Controller Calibration
Advanced controller calibration (Exact Color or G7 calibration)
For screen selection, refer to Screen Selection (Adjustment Flow When Changing the Screen).
For details about the gamma automatic adjustment, refer to Gamma Automatic Adjustment (Regular Adjustment Flow (High Accuracy/Adjustment Flow When Changing the Screen)).
For details about the density balance adjustment, refer to Density Balance Adjustment (Adjustment Flow When Changing the Screen).
For details about the advanced controller calibration, refer to Advanced Controller Calibration (Regular Adjustment Flow (High Accuracy/Adjustment Flow When Changing the Screen)).