Abstract: An inkjet printing system includes a fluid coupling assembly for supplying fluid to a jetting module. The jetting module includes an electrical connector adapted to connect with a corresponding electrical cable, and a jetting module attachment face with a jetting module fluid port. The fluid coupling assembly includes a coupling assembly attachment face with a coupling assembly fluid port in a position corresponding to the jetting module fluid port. A latch mechanism on the fluid coupling assembly includes a latch handle and a latch fastener adapted to engage with a latch keeper on the jetting module. When the latch handle is in a first disengaged position the latch mechanism blocks the electrical connector, and when the latch handle is in a second engaged position the latch fastener engages the latch keeper to secure the fluid coupling assembly to the jetting module.

Abstract: A modular inkjet printhead assembly including a plurality of printhead modules mounted on alternating sides of a central rail assembly. The rail assembly includes a beam and a rod attached to a side of the beam. The printhead modules include a jetting module having an array of nozzles, a first alignment tab having a first alignment datum and a second alignment datum, a second alignment tab having a third alignment datum and a fourth alignment datum, a rotational alignment feature including a fifth alignment datum, and a cross-track alignment feature including a sixth alignment datum. Portions of the alignment tabs of the jetting module are adapted to fit within corresponding notches in the beam. A jetting module clamping mechanism and a jetting module cross-track force mechanism apply forces to the jetting module that causes each alignment datum to engage with corresponding alignment features on the rail assembly.

Abstract: An inkjet printhead assembly includes a rail assembly and a removable jetting module. The rail assembly includes a beam and a rod attached to the beam. A printhead module includes the jetting module and a mounting assembly. The jetting module includes an array of nozzles, a first alignment tab having a first alignment datum and a second alignment datum, a second alignment tab having a third alignment datum and a fourth alignment datum, a rotational alignment feature including a fifth alignment datum, and a cross-track alignment feature including a sixth alignment datum. The mounting assembly includes a similar set of alignment features. Portions of the alignment tabs of the jetting module and the mounting assembly are adapted to fit within corresponding notches in the beam and engage with the rod. A jetting module clamping mechanism applies a force to the jetting module causing it to engage with the rail assembly.