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

Claim 1:
2. The method of claim 1 further comprising:
generating an inkjet status vector that identifies each inkjet in the plurality of inkjets in the printhead as being operational or inoperative;
applying a filter having an integer number of elements to the inkjet status vector;
generating a first histogram of the filtered inkjet status vector to identify the spatial distribution of the inoperative inkjets in the printhead;
generating a first probability distribution for each element of the filter using an acceptable probability failure rate;
generating a second histogram for the printhead using the first probability distribution rate and a total number of inkjets in the plurality of inkjets;
comparing corresponding terms in the first and second histograms; and
generating 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.