Patent ID: 7841707

Claim:
A cartridge unit for an inkjet printer comprising: a body portion having a plurality of ink storage compartments; a pagewidth printhead configured to receive ink from the ink storage compartments and distribute said ink to a plurality of nozzles arranged in use to deliver the ink onto passing print media; and a capping assembly for capping the pagewidth printhead, the capping assembly comprising: a body which extends the length of the printhead; and a capping element housed within said body and having a rim portion for capping at least a portion of the printhead; and a displacement assembly housed within the body for moving the capping element between a first position where the rim portion extends from said body and a second position where the rim portion is contained within the body, the displacement assembly being controlled by an electromagnet to select between the first and second positions, wherein the ink storage compartments comprise absorption material which stores the ink under capillary action for supply to the nozzles of the printhead.