A3 printer/copier needs attention (Leominster HR6)

Brother Mfc-J6510dw A3 duplex colour printer / copier / scanner. New cartridges and a ream of A3 paper. Although hardly used, sadly this has been sat for a couple of years and I think needs a manual cleaning of the nozzles / head now as the auto clean isn't shifting any blockage. So not currently working. Collection Leominster.