Rad,

Is this a recent occurrence, or have you always had this problem ?

Lint on clothes has several causes,especially with dark clothes,

Most often, depending on the detergent, the chemicals don't break down in a water temperature thats less than 70 degrees. and leave's a lint looking deposit on the clothes.

Doing a "mixxed" load (polyester vs cotton) will leave a deposit, because the cotton sheds the fibres and sythetics attract fibres.

And theres always the "overloading" situation, too many clothes for the water /load size selected, and too much detergent for the load size, and conditions.

Everything else seems to wash and clean, so it's not likely the washer itself.

:) :) :)