| 摘要 |
Such a device comprises a plurality of modules (1) each having a body (4) presenting an ink inlet (2) and a purging orifice (3), co-operating with the gun (5) of which the periphery carries two sets of O-rings respectively delimiting the ink supply chamber and the purge chamber. Said particular arrangement provides for the sealing while permitting a rotation ( alpha ) on 360<o> of the gun and therefore a setting of the jet direction with respect to the axis of the nozzle ejecting the ink drops. Each of the modules (1) is further orientable about an axis (31) according to an angle ( beta ). The invention applies to the printing of multiple writing lines and to the optional covering of said lines. |
