HP Latex 360 Users Guide - Page 105

Image quality, maintenance, Color calibration, Calibrate, Recommended

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To start color calibration of the loaded substrate from the front panel, select , then Image quality maintenance > Color calibration > Calibrate. Color calibration can also be run while adding a new substrate (see Add a new substrate on page 92). NOTE: Only substrates at least 61 cm (24 in) wide can be calibrated. The calibration process is fully automatic and can be performed unattended after you have loaded substrate of the type you wish to calibrate. The process takes about 15 minutes and consists of the following steps: 1. The color calibration test chart is printed, which contains patches of different densities of each ink used in your printer. 2. The test chart is scanned by the line sensor. If the scan cannot be completed successfully, a message is displayed on the front panel; see Front-panel error codes on page 160. 3. From the measurements made by the line sensor, the printer calculates the necessary correction tables to apply to your print jobs, for consistent color printing on that substrate type. Calibration should be done in any of the following circumstances: ● Whenever a new substrate type is introduced that has not yet been calibrated. ● Whenever you notice excessive color differences between prints. Such color differences are mainly caused by aging and wear of the printheads, installing new printheads, and changes in substrate characteristics between one roll and another. You can check the color calibration status of your substrate by pressing on the front panel. ● Recommended status indicates that this substrate has never been calibrated. In this case, the factorydefault color tables will be applied to print jobs, as there is no reference state defined. After one or ENWW Color calibration 99

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To start color calibration of the loaded substrate from the front panel, select
, then
Image quality
maintenance
>
Color calibration
>
Calibrate
. Color calibration can also be run while adding a new substrate
(see
Add a new substrate
on page
92
).
NOTE:
Only substrates at least 61 cm (24 in) wide can be calibrated.
The calibration process is fully automatic and can be performed unattended after you have loaded substrate
of the type you wish to calibrate. The process takes about 15 minutes and consists of the following steps:
1.
The color calibration test chart is printed, which contains patches of different densities of each ink used
in your printer.
2.
The test chart is scanned by the line sensor. If the scan cannot be completed successfully, a message is
displayed on the front panel; see
Front-panel error codes
on page
160
.
3.
From the measurements made by the line sensor, the printer calculates the necessary correction tables
to apply to your print jobs, for consistent color printing on that substrate type.
Calibration should be done in any of the following circumstances:
●
Whenever a new substrate type is introduced that has not yet been calibrated.
●
Whenever you notice excessive color differences between prints. Such color differences are mainly
caused by aging and wear of the printheads, installing new printheads, and changes in substrate
characteristics between one roll and another.
You can check the color calibration status of your substrate by pressing
on the front panel.
●
Recommended
status indicates that this substrate has never been calibrated. In this case, the factory-
default color tables will be applied to print jobs, as there is no reference state defined. After one or
ENWW
Color calibration
99