HP Latex 570 User Guide - Page 109

Color consistency between different HP Latex 500 series printers, Recommended, Reset, Obsolete

Page 109 highlights

2. The test chart is scanned by the HP Embedded Spectrophotometer. If the scan cannot be completed successfully, a message is displayed on the front panel; see Front-panel error codes on page 180. 3. From the measurements made by the spectrophotometer, 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 more color calibrations have been performed, pressing the Reset button returns the status to Recommended. ● OK status indicates that a color calibration has been performed successfully at least once on this substrate, and therefore a color reference state is defined. ● Obsolete status indicates that the last color calibration may be out of date. For instance, color calibration status is set to Obsolete whenever a printhead is replaced. The color reference state remains defined. ● N/A indicates that this substrate cannot be color-calibrated. NOTE: Generic substrates cannot be color-calibrated, although such substrates may be suitable for color calibration. You can color-calibrate clones of most generic substrates. TIP: If color calibration fails, it is worth trying again. TIP: If the first color calibration of a new substrate fails, press the Reset button before trying again. Color consistency between different HP Latex 500 series printers ENWW Color consistency between different HP Latex 500 series printers 103

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2.
The test chart is scanned by the HP Embedded Spectrophotometer. If the scan cannot be completed
successfully, a message is displayed on the front panel; see
Front-panel error codes
on page
180
.
3.
From the measurements made by the spectrophotometer, 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 more
color calibrations have been performed, pressing the
Reset
button returns the status to Recommended.
OK
status indicates that a color calibration has been performed successfully at least once on this substrate,
and therefore a color reference state is defined.
Obsolete
status indicates that the last color calibration may be out of date. For instance, color calibration
status is set to Obsolete whenever a printhead is replaced. The color reference state remains defined.
N/A
indicates that this substrate cannot be color-calibrated.
NOTE:
Generic substrates cannot be color-calibrated, although such substrates may be suitable for color
calibration. You can color-calibrate clones of most generic substrates.
TIP:
If color calibration fails, it is worth trying again.
TIP:
If the first color calibration of a new substrate fails, press the
Reset
button before trying again.
Color consistency between different HP Latex 500 series printers
ENWW
Color consistency between different HP Latex 500 series printers
103