HP Designjet T620 Printer series - Manual (Page 61)

You can check the color calibration status of the currently loaded paper at any time by pressing the
View loaded paper key on the front panel. The status may be one of the following:
● PENDING: the paper has not been calibrated.
NOTE: Whenever you update the printer's firmware, the color calibration status of all papers is
reset to PENDING.
● OBSOLETE: the paper has been calibrated, but the calibration is now out of date because a
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 Printer Utility.
You can start color calibration in the following ways:
● From the HP Color Center: select Calibrate Your Printer.
●
From the front panel: select the Image Quality Maintenance menu icon , then 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 A3 or any larger size.
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.
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