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How to reprint with consistent colors on the same printer with the HP Latex 3000 Series and HP Latex 1500

HP-JavierCastro 25th of July 2019

Good practices to ensure correct color consistency.

Matching the color of the original plot

Reprints are one of the most common scenarios when printing: a print could get damaged during transportation or installation, customers might need more copies after some time…

Matching the color of the original plot is a must to avoid wasting time, media, and ink in unnecessary adjustments.

Matching color for HP Latex Printer 3000 series

Do you want to reprint with consistent colors? Follow these recommendations to understand how.

Color Calibration

Keep your printer tuned to reproduce consistent colors

Printheads can degrade over time, leading to Image Quality issues. The color output of the printer can shift over the time of usage. You can prevent this with color calibration.

How does it work?

  • When you use a new substrate in the printer, you must perform the first color calibration to set a reference. There is no factory reference, the first calibration sets the color reference for future calibrations. NOTE: Media downloaded from the PrintOS Media Locator comes with a reference made in the best conditions.
  • From then on, every time a new calibration is done the printer is calibrated to match that reference, keeping colors consistent.

In other words, the color calibration reference is like taking a picture of the printer status; later on, we will try to match this picture when the color has shifted.

Hp Latex 3000 printer set and very the color reference

Color calibration is substrate dependent, so each substrate in the printer requires its own color calibration. Setting the reference or doing a color calibration does not affect all other substrates.

Depending on where the preset comes from, the reference is embedded or not.

HP Latex 3000 color calibration

NOTE: If you clone a preset that has been color calibrated, the reference is maintained in the new clone.

Printing factory workflow

Color consistency while reprinting

Reprinting while maintaining consistent colors can be easily achieved by following a simple workflow:

HP Latex prepare the substrate

Prepare the device

Before doing a color calibration, it is necessary to ensure good image quality.
Make sure that:

  • Printheads have good nozzle health.
  • Printheads are correctly aligned.
  • Substrate is advancing correctly.
  • Printheads are as new as possible (use new printheads for best performance).

NOTE: Environmental conditions within printer specifications.
Consult the user guide if you have doubts about any of the previous verifications: (p. 178)

Identify the scenario before running color calibration

When you download a new media from the PrintOS Media Locator, or when you create a new substrate clone from a generic media, color calibration must be done.

There are two possible scenarios:

How to set the color reference

After setting the reference, the color will not change. As there is no factory reference, the first calibration sets the color reference for future calibrations.

What if the substrate you’re using already has a color reference?
Do a color calibration to match the reference.

Hp latex new color reference

In this case, if you printed something before calibrating, the color may change, since the printer will be calibrated to match the reference.

In the IPS, go to Substrate > Color Calibration and press Calibrate or Set color reference (depending on the previous scenarios):

HP Latex color calibration from IPS

The substrate is now prepared to print while keeping colors consistent. Print!

The substrate was prepared on day 0 and it is only necessary to do a color calibration to continue printing with consistent colors.

HP Latex color calibration

Perform the color calibration

Color calibration should be done when:

  • There is a visible color shift.
  • A printhead is replaced.
  • The color calibration status changes to Obsolete in the main panel/IPS/configuration center.

NOTE: Remember to verify good IQ conditions before running the color calibration.
If it is necessary to do a color calibration, go to Substrate > Color Calibration and press Calibrate.

HP color calibration good IQ

After the completion of the calibration process, the printer will be ready to reprint with consistent colors.

Non-supported substrates

Some substrates cannot be read by the embedded spectrophotometer or line sensor.

This is the case for:

Hp Latex Some substrates cannot be read by the embedded spectrophotometer or line sensor

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