Hi...
I found this in one of the posts...
For the future, since every board is a different color... Use a piece of white copy paper on the board and crank the head down and measure the Board Sensor. A 156 is perfect a 90 is a dirty window.
I am getting a 14 - 12 (it starts at 14 and goes down to 12).
What is that telling me?
Thanks...