RoyalJet Clean series are print-heads cleaning agent for routine operating maintenance. It gives advantages of cleaning for various print-heads, with prominent cleaning effects, clear all the clogging within 3~10 seconds. It is a special design/formulation for print-heads flushing and maintenance. It is environmental friendly water base formulation with profound cleaning effect while not damaging the print-heads. It is totally safe to use, suitable for print-heads and ink supply capillary cleaning after change over of different kinds of Ink Jet Inks.