This invention relates to a cover assembly for a cradle unit of a pagewidth print engine. The cover assembly defines a docking port for a refill unit configured to refill a cartridge unit of the print engine. The cartridge unit is housed in the cradle. The docking port includes a rim portion, engagement...http://www.google.es/patents/US7775642?utm_source=gb-gplus-sharePatente US7775642 - Docking port in a cover assembly
