Answer: Ink cure issue is not related to Ink adhesion issue. Even if ink was cured enough, ink may not adhere to the media tightly.

[Procedure]

1. Please make sure the head gap is less than 2.0mm.
　 Head gap= between the top height of the material and the head surface

2. Please try to add more print passes.

3. Add UV scan at last passes [SET UP] -> [UV SCAN ADD] and change the
　 value bigger (1~9), and check the result.

4. Send the image one more time after print, that without printing but only UV
　 irradiation. [SET UP] -> [UV MODE]: NO PRINT

5. Ink will not be cured enough if the UV lamp glass is dirty by ink mist or dust.　
　 Clean gently the glass surface using Nonwoven cloth (SPC-0547) with alcohol.

6. Check the Firmware version (Please tell us when you contact us).

[How to check Firmware version]

It will be appeared on the display right after you powered on.

Or:
You can see the display below after you hit the key 2 times with display.

7. Please contact us if you still keep having this issue