Yeah, just compare your other notes and that will bring you to The same conclusion, notes do vary sometimes on how dark the print was so a little more or a little less.
After printing process, the ink is still wet. The stacking of the others as they are printed add up to much weight. I was a printer a long time ago. Some of the stacks can weight many pounds. Just think of say 500 sheets of 32 to a sheet, now 50 depending the series. That's a lot of weight that the stack has. That size stack of just five hundred sheet could weight 20# +. So, the wet ink can transfer to the lowest ones.
