This page last changed on Aug 19, 2008 by johannaf.

Recalibration is an important step for maintaining quality color output. You can recalibrate a mode within Media Manger or RIP-Queue.

  • Why should I recalibrate?
    • Produce consistent color
    • Produce consistent output
  • When should I calibrate?
    • New roll of media, ink and/or print heads
    • Environmental changes (humidity)
    • Every 3 months (anytime you're not getting expected results)
  • What does Recalibration do for me?
    • Utilizes the Target Densities
    • Updates the Original Readings
    • Corrects for current output to account for mechanical drift

In ONYX the calibration table and the ICC profile table are kept separate. This allows you to recalibrate without invalidating your ICC information. You do not need to create a new ICC profile when you recalibrate, this process simply updates the calibration table and adjust for the current output while keeping the original linearization in place.

To Recalibrate from Media Manager:

The selections in the drop-down list depend on the printer that is displayed in the upper right-hand corner of the Media Manager window. You will be prompted to Configuring Color Sampling Devices, if you haven't already done so.

  1. Choose the Media Group, Media Name, and Mode Name from the drop-down list and click > Next.
  2. Click > Print Swatch
  3. Select your color device ( or click > Setup > Measurement Device > Add - if your device is not listed) and click > Print.
  4. Click > Read Swatch and then click > Read Swatch again.
  5. Follow the on-screen instructions for calibrating your color sampling device and for taking a white point reference if needed.
  6. Click > OK to Accept the readings.
  7. Click > Build Linearization, then click > Next. You do not need to make any adjustments on the following screens, theses are just graphs of your data.
  8. Click > Accept, then click > Next.
  9. On the final screen you can make a test print or click > Next to finish.

Note:

If for some reason your printer does not achieve the density of the original profile, the target density on the upper end will go flat on that channel and there is no warning. You cannot reset to original. You then have to re-install your profile and increase the ink restriction hopefully to meet the target.

Tweak profile in v6.5 was a fast and easy way to check this. In V7 you can check this within the View Media Library > access the media/mode you want to review and click > edit.

Some users will scale their initial target densities by 95% to 90% to allow a bit of leeway for the future re-calibrations. This is also assuming that future calibrations will always be lower. The benefit of keeping the upper limit of your target densities "floating" is that if your printer can produce a higher density you're not locked in and the maximum gamut is always achievable.

You can also see the Tips & Tricks for Recalibrate from RIP-Queue.

Back to Media Manager.


Recalibrateamode1.jpg (image/jpeg)
Document generated by Confluence on Nov 19, 2008 16:33