HP Designjet T920 ePrinter series - Manual (Page 105)

NOTE: Whenever you update the printer's firmware, the color calibration status of all papers is reset
to Recommended.
● Obsolete: the paper has been calibrated, but the calibration is now out of date because the printhead
has been replaced, and should be repeated.
● Done: the paper has been calibrated, and the calibration is up to date.
● Disabled: this paper cannot be calibrated.
NOTE: Color calibration cannot be performed on plain paper, nor on any kind of transparent material.
You can also check the color calibration status by using the HP Utility.
You can start color calibration in the following ways:
● From the HP Designjet Utility for Windows: select Color Center > Calibrate paper, and choose the paper
to be calibrated. If the Color Center is not available, try using the Print Quality Toolbox in the Support
tab.
● From the HP Utility for Mac OS X: select Paper Preset Management from the HP Color Center group,
choose the paper to be calibrated, press the button and select Calibrate Paper.
● From the front panel: press , then , then Image quality maintenance > Calibrate color.
The calibration process is fully automatic and can be performed unattended after you have loaded paper of
the type you wish to calibrate—which should be A4 or any larger size. If you have more than one roll loaded,
the printer will ask which roll you want to use for the calibration.
The process takes about 3–5 minutes and consists of the following steps.
1. A calibration chart is printed, which contains patches of each ink used in your printer.
2. The chart is allowed to dry for a period of time that depends on the paper type, so that the colors have
time to stabilize.
3. The chart is scanned and measured.
4. From the measurements, the printer calculates the necessary correction factors to apply for consistent
color printing on that paper type. It also calculates the maximum amount of each ink that can be applied
to the paper.
Color management from printer drivers
Color management options
The aim of color management is to reproduce colors as accurately as possible on all devices: so that, when
you print an image, you see very similar colors as when you view the same image on your monitor.
There are two basic approaches to color management for your printer:
ENWW Color management from printer drivers 97