Patent ID: 8057023

Claim:
An ink cartridge unit removably mounted in a cradle unit of an inkjet printer, said cartridge unit comprising: a main body defining a plurality of integrally formed ink reservoirs non-removable from the main body, each reservoir having a layered stack of absorbent material forming a micro-capillary array for suspending ink inside said reservoir; a lid assembly covering the main body to seal ink inside the ink reservoirs, the lid assembly having a refill facility whereby the ink reservoirs are refillable with ink from a suitable ink refill unit; a printhead assembly operatively fed with ink from the ink reservoirs in the main body; and a capper assembly attached to the main body for operatively capping the printhead assembly to prevent damage to micro-electromechanical nozzle arrangements defined on a printing surface of the printhead assembly; wherein, the refill facility has a plurality of valve fittings, each valve fitting being an elastomeric moulding configured for sealing shut when not engaged with the ink refill unit, and opening upon engagement with the ink refill unit to form sealed fluid communication therewith.