A printhead cartridge and carriage assembly (10) is provided comprising: a carriage (12); a snap-spring (62) for securing a printing cartridge (14) in postion on the carriage; and an interconnect strip (16) for supplying electrical signals to the cartridge, including a force loading spring pad (24) for...http://www.google.de/patents/US4907018?utm_source=gb-gplus-sharePatent US4907018 - Printhead-carriage alignment and electrical interconnect lock-in mechanism
