Wiper Roller Maintenance: Best Practice for Smudge Control

The Wiper Roller NXT Syringe Cleaning Process is an alternative to this video.

Wiper Roller Maintenance: Best Practice for Smudge Control

This video is "Chapter-ized" for easy recall. 

Note: The white buttons across the bottom to easily jump to the next Chapter.
There is also a "Hamburger Menu" in the lower right for display of the Chapters.