Problem during Laser batch printing

We have been printing cartons of medicine on offset printing machine on the same brand of boxboard for many years Pressroom Chemicals and the brand of ink has always been the same.
But now we face the problem that our our client is now doing laser batch printing on our printed cartons.
Laser batch printing does not print clearly on our printed cartons.
What corrective actions should i take?

is this problum occur due to box board coating???