| 主权项 |
1. An inkjet printhead assembly including a removable jetting module for printing on a print medium traveling along a media path from upstream to downstream, comprising:
a rail assembly spanning the print medium in the cross-track direction including:
a beam; anda rod attached to a side of the beam that faces the print medium; a printhead module including:
a jetting module having an array of nozzles extending in a cross-track direction, wherein the jetting module includes:
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, the second alignment tab being spaced apart from the first alignment tab in the cross-track direction;a rotational alignment feature including a fifth alignment datum; anda cross-track alignment feature including a sixth alignment datum; anda mounting assembly adapted to engage with the rail assembly at a defined cross-track position including:
a third alignment tab having a seventh alignment datum and an eighth alignment datum;a fourth alignment tab having a ninth alignment datum and a tenth alignment datum, the fourth alignment tab being spaced apart from the third alignment tab in the cross-track direction;a rotational alignment feature including an eleventh alignment datum;a jetting module clamping mechanism for applying a force to the jetting module that causes the first alignment datum, the second alignment datum, the third alignment datum and the fourth alignment datum of the jetting module to engage with the rod, and causes the fifth alignment datum of the jetting module to engage with corresponding rotational alignment feature associated with the beam; anda mounting assembly clamping mechanism for applying a force to the mounting assembly that causes the seventh alignment datum, the eighth alignment datum, the ninth alignment datum, and the tenth alignment datum of the mounting assembly to engage with the rod, and causes the eleventh alignment datum of the mounting assembly to engage with a corresponding alignment feature on the beam; and a jetting module cross-track force mechanism for applying a cross-track force to the jetting module that causes the sixth alignment datum of the jetting module to engage with a corresponding cross-track alignment feature associated with the beam; wherein portions of the first and second alignment tabs of the jetting module and portions of the third and fourth alignment tabs of the mounting assembly are adapted to fit within corresponding notches in the beam. |
