




Disabled the motors on the screen, move the print head to the middle position, spray alcohol on a paper towel or cloth, and clean the x-axis optical axis and y-axis guide rails thoroughly.

Apply a layer of lubricating oil on the optical axis. Gently wipe the surface with a tissue to make it smooth. Pull the print head back and forth to move it, and then apply lubricating oil to fully lubricate the optical axis.


Apply lubricating oil to the surface of the guide rail and the gap between the slider. Gently wipe the guide rail with a tissue to prevent the lubricating oil from dripping. Pull the print head up and down to allow the lubricating oil to fully lubricate the guide rail.



