Patent ID: 7182442

Claim:
Ink jet printing apparatus, comprising: a linear array of jet modules each including an inlet for receiving ink, an outlet for re-circulating the ink, a nozzle for discharging ink in the form of droplets, and a perturbation device for causing a continuous stream of ink droplets to be discharged from the respective nozzle; and an ink supply system including an inlet manifold, an outlet manifold, and a plurality of connecting passageways connecting said jet modules in parallel between the inlet and outlet manifolds; characterized in that said inlet and outlet manifolds are formed in a body member exposed in alignment with said linear array of jet modules and formed with a plurality of bores for receiving said linear array of jet modules; and said connecting passageways connect the inlet of each jet module to said inlet manifold and the outlet of each jet module to said outlet manifold, such as to define a T-connection of each jet module with said inlet and outlet manifolds.