Steps Use this procedure when white ink coverage is incomplete on thin lines, small text, or fine detail artwork. Improve white underbase coverage by adjusting artwork resolution and white choke settings. Verify hardware performance before making software adjustments.
Verify Printer Performance 00:00:00
What you need
No missing nozzles Consistent nozzle check pattern Issue confirmed to be related to software settings rather than hardware Perform a nozzle check. Confirm the nozzle check shows complete and consistent output. Proceed only if all nozzles are printing correctly.
Create a Test Job 00:00:32
Open Neostampa. Create a new job. Select the print mode you want to test. Run a test print. Review the printed output.
Evaluate White Coverage 00:01:52
Inspect thin lines and small text. Check whether white ink is fully covering fine details. Identify areas with weak or incomplete white underbase coverage.
Increase Artwork Resolution 00:01:52
What you need
Higher resolution improves detail reproduction Higher resolution improves white underbase generation Save the modified file separately from the original Open the artwork in Adobe Photoshop. Select Image from the top menu. Click Image Size. Increase the resolution by a factor of four. Click OK. Save the updated file to a new location. Example: Change 300 DPI to 1200 DPI.
Import the Updated Artwork 00:02:40
Return to Neostampa. Create a new job. Import the higher-resolution artwork.
Adjust White Choke Settings 00:02:40
Open the Print Scheme Manager. Locate the Custom Inks setup next to the Color Mode dropdown. Select White Ink settings. Navigate to the Choke settings. Change the unit from Millimeters to Points. Change the choke value from 0.3 to 0.1. Click OK to apply the changes. Save the print scheme.
Print and Review Results 00:03:44
Run a new test print using the updated artwork and choke settings. Inspect the print output. Confirm that white ink now properly covers thin lines and fine details.
Important Considerations 00:04:32
What you need
Return the choke value to the standard setting after completing the specific job Leaving the choke value reduced may negatively affect regular print jobs Avoid excessively high DPI values Extremely large files can slow RIP processing Large files may reduce overall workflow efficiency
Expected Result 00:04:32
What you need
Improved white underbase coverage Better reproduction of small text Better reproduction of thin lines Improved detail retention on fine artwork 