How to fix the streak of vertical line on my print?

How to fix the streak of vertical line on my print?

Wipe clean the printing head with a clean cloth, that should fix the streak right away. Here's the part of the printing head that you need to wipe.


How to clean the printing head

Before you clean the printing head, please wait for 10 minutes after you turn off your Cubinote to cool down the printing head.