A method of cleaning a discharge port surface of an ink jet recording apparatus includes wiping the surface using a blade having a certain contact area with the surface and rubbing the surface using a rubbing member having a larger contact area with the surface than the blade. The wiping and rubbing...http://www.google.com.au/patents/US4951066?utm_source=gb-gplus-sharePatent US4951066 - Ink jet recording apparatus having a discharge orifice surface and a blade and rubbing member for cleaning the surface independently of each other
