As I look at this, there is no OP. Absorption of UV light (in sunlight) can stimulate many chemical reactions. So, the UV causes, in the situation I’m most familiar with, the ink from my old HP650c to lighten.
As I look at this, there is no OP. Absorption of UV light (in sunlight) can stimulate many chemical reactions. So, the UV causes, in the situation I’m most familiar with, the ink from my old HP650c to lighten.