An inkjet printer assembly includes a cartridge having an integrated pagewidth printhead integrated circuit (IC); a cradle for receiving the cartridge; an air compressor for providing compressed air to the cartridge, the air compressor including a fan housing, an air filter, and an impeller, the fan...http://www.google.de/patents/US7954920?utm_source=gb-gplus-sharePatent US7954920 - Inkjet printer assembly with driven mechanisms and transmission assembly for driving driven mechanisms