Luckily I got another unit in for service and compared the plastic
pieces on both paper trays and the one that have it is made of bent
stainless steel piece to prevent wear and let paper slip above the
rubber pad (only function is to allow one page feed at a time.)

I don't understand that I asked before about this and got no reply.

By the way, If samsung had this part seperate and I wouldn't be here
in first place. Unfortunely, this not service part available from
samsung, in order to get this, have to order whole tray. The hold up
we are waiting from owner's reply for re-estimate to account for cost
of new paper tray.

The answer would saved time and make a part from piece of metal sheet.

Cheers, Wizard