Fault Phenomenon

1. When printing gold (foil-stamp) works, one or more distinct vertical lines appear on otherwise flat areas of the print.

2. After lamination, the areas corresponding to these vertical lines are not fully laminated.

Cause Analysis

Ink contamination on the encoder strip

1. Inside the printer, there is a transparent polymer strip called the encoder strip, which is used for precise printhead positioning.

2. If the encoder strip becomes contaminated (for example, ink adhering to it during long-term printing), the printhead cannot correctly determine its position at the contaminated location. As a result, no ink is ejected at that coordinate, producing vertical lines in the printed result.

Troubleshooting Steps

1. Power off the printer and remove the top cover.

2. Inspect the encoder strip for ink contamination.

• If the encoder strip is not contaminated, refer to https://support.eufymake.com/s/article/eufyMake-UV-Printer-E1-Encoder-Strip-Replacement-SOP

3. If contamination is present, lightly moisten a lint-free cloth with alcohol and gently clean the affected area of the encoder strip.

4. Reinstall the top cover of the printer.

5. Print a status chart and check whether vertical lines are still present.

• If no vertical lines appear, the issue has been resolved.

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

• Print photos of the gold-foil stamped works and photos of the barcode area.