If automatic printhead maintenance (AMS) is not functional, the following manual procedure can be used temporarily to attempt to recover nozzles.
Foam Tipped Swab (3010118211)
Flush (3010106646 Flush UV 1 Liter) or Isopropyl alcohol (99% pure)
Make sure the seam on the swab does not contact the printhead.
Please call your local field service representative to schedule a visit to service the AMS unit. Recovering nozzles by wiping is to be used only as a temporary procedure until the AMS unit is fixed.