Fluid Drop Detection In Firing Paths Corresponding To Nozzles Of A Printhead

摘要

A method of operating a printing system includes identifying groups of nozzles of a plurality of nozzles of a printhead device. The method also includes ejecting fluid drops by the printhead device from nozzles thereof and along corresponding firing paths. The method also includes controlling movement of a detector carriage including a plurality of drop detectors of a drop detector array with respect to the printhead device by a control module to align each one of the drop detectors with the respective firing paths corresponding to the respective nozzles at a predetermined time. The method also includes sensing the firing paths corresponding to the nozzles to detect a presence of the fluid drops by the drop detectors such that each one of the drop detectors senses at a same time a respective firing path corresponding to a respective nozzle for a plurality of groups of nozzles.

主权项

1. A printing system, comprising:
a printhead device including a plurality of nozzles, the printhead device to eject fluid drops from the nozzles and along corresponding firing paths, respectively; a group identification module to identify groups of nozzles of the plurality of nozzles of the printhead device; and a drop detector array including a plurality of drop detectors disposed adjacent to each other and a detector carriage coupled to the plurality of drop detectors;
the drop detectors to sense the firing paths corresponding to the nozzles to detect a presence of the fluid drops for the respective nozzles, each one of the drop detectors to sense at a same time a respective firing path corresponding to a respective nozzle for a plurality of groups of nozzles; andthe detector carriage and the printhead device to move with respect to each other.