Leaving these marks
Page 1 is the Back
Page 2 is the front
Anybody seen this / know what it is likely to be?
Can't really afford to be buying parts to swap out if it isn't going to fix it.
I think I can rule out Toner and I've put the toner from broken machine into non-broken and works cleanly.
We have lots of these printers, but this is happening on 2 of them