This from Holland America.. short answer in no laundry on this ship.
'For your comfort and convenience we offer full
laundry and dry cleaning service on each ship in the Holland America
Line fleet. In your stateroom you will find laundry bags and price lists
conveniently located in your closet.
Onboard self-service launderettes consisting of
washers, dryers, irons and ironing boards are available on the ms
Amsterdam, Maasdam, Prinsendam, Rotterdam, Ryndam, Statendam, Veendam,
Volendam and Zaandam. There is a charge for the use of the self-service
launderettes and it is coin operated. Iron and ironing boards are
provided at no cost.
Please note: For safety reasons, we ask you to refrain from ironing clothes in your stateroom.'