Patent ID: 11878530
Assignee: XEROX CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 13:
14. The inkjet printer of claim 13, the controller being further configured to:
generate an inkjet status vector that identifies each inkjet in the plurality of inkjets in the printhead as being operational or inoperative;
apply a filter having an integer number of elements to the inkjet status vector;
generate a first histogram of the filtered inkjet status vector to identify the spatial distribution of the inoperative inkjets in the printhead;
generate a first probability distribution for each element of the filter using an acceptable probability failure rate;
generate a second histogram for the printhead using the first probability distribution rate and a total number of inkjets in the plurality of inkjets;
compare corresponding terms in the first and second histograms; and
generate a signal indicating the printhead is ready for a purge when one term in the first histogram is equal to or greater than the corresponding term in the second histogram.