Video link: https://youtu.be/AZVUGttMx4Y?si=9gIjXzzr6nzqSWUd

Introduction

Machine malfunctions may cause incomplete ink curing, which can affect the appearance and durability of printed designs. This guide explains what insufficient curing is, common symptoms, how to check for it, and the recommended troubleshooting steps.

What Is Curing?

UV printing uses ultraviolet light to trigger a photopolymerization reaction in photosensitive resin ink. This rapidly converts the ink from a liquid state into a solid cured film, forming the final printed image. This process is called ink curing.

What Is Incomplete Curing?

If the UV lamp is not functioning correctly or curing conditions are not met, some ink may remain partially uncured. This is known as insufficient ink curing.

When curing is insufficient, ink residue on the surface of the print may smear or wipe off easily. This is considered abnormal and requires troubleshooting.

Note: Surface damage or color loss caused by scratching the print with hard objects should not be used as a method for judging curing quality.

How to Check Whether Your Print Is Fully Cured

Step 1: Dry Tissue Test (Basic Check)

After printing is complete, gently wipe the surface of the print using a dry tissue.

• If there is obvious color residue on the tissue, the print may have insufficient curing and further troubleshooting is recommended.

Note: Please wear gloves during this process to avoid contact with uncured ink.

Step 2: Confirm the Previous Printer Status

Status 1

Before the issue occurred, the printer had recently performed:

• Moisturizing

• Initial ink filling

• Deep Clean

Status 2

• The printer had been used for printing continuously within the last 24 hours.

Cause Analysis:

For Status 1

In some cases, the cartridge opening force may be too high, causing insufficient ink flow to fully flush out the moisturizing fluid inside the printhead. This can result in cleaning fluid mixing with the ink at the nozzle, leading to faded colors and incomplete curing.

For Status 2

UV lamp contamination or lamp aging may reduce curing efficiency.

Troubleshooting Steps

1. Run Medium Cleaning

Run Medium Clean 3–5 times.

After cleaning, reprint the file and check whether the curing issue improves.

2. Check the UV Lamp

2.1 Print the test pattern.

Test pattern project file:

https://support.eufymake.com/s/article/Test-Diagram-Project-File

Note: Use smooth, non-absorbent materials such as acrylic or glass (recommended thickness: 3 mm or above) for testing.

2.2 Check for Color Residue

Use a dry tissue to wipe the printed surface and observe:

• Whether color residue appears

• Which color blocks are affected

2.3 Compare Printed Colors

Check whether the printed colors match the original design.

If obvious fading is present:

1. Restore the printer to factory settings

2. Re-initialize ink filling

3. Reprint the test file

If the issue still persists, send photos of the defective print to eufyMake Customer Support.

2.4 Observe UV Lamp Operation

Reprint the test file and use a mobile phone to record the UV lamp during printing.

Note: Wear appropriate eye protection during observation.

Check whether the UV lamp operates normally during the print process.

2.5 Clean the UV Lamp Area

Refer to the deep cleaning guide to perform UV lamp maintenance:

https://support.eufymake.com/s/article/Deep-Manually-Cleaning-for-UV-Printer-E1

2.6 Verify Again

After maintenance is completed, reprint the file and verify whether the issue has been resolved.

3. Check the Ink Cap for Fluid Accumulation

3.1 Inspect the Ink Cap Area

Use the App or PC software to move the printhead out of the ink cap area.

Check whether there is any fluid accumulation inside the ink cap or on the ink pad.

3.2 If Fluid Accumulation Is Found

If fluid accumulation is present (as shown below), contact eufyMake Customer Support.

Support Contact

If the issue persists after completing the above steps, please contact eufyMake Customer Support at support@eufymake.com with the following information:

• Your Order Information

• Printer SN. Please refer to： https://support.eufymake.com/s/article/How-to-Check-the-Device-Serial-Number-SN

• Printer and App Logs. Please refer to： https://support.eufymake.com/s/article/Log-Upload-Process-App-PC-Overview

• Relevant photos and videos.