US 12,391,053 B2
Printhead monitoring
Andrei Alexandru Dafinoiu, Sant Cugat del Valles (ES); Andreu Vinets Alonso, Sant Cugat del Valles (ES); and David Toussaint, Sant Cugat del Valles (ES)
Assigned to HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., Spring, TX (US)
Appl. No. 18/005,402
Filed by Hewlett-Packard Development Company, L.P., Spring, TX (US)
PCT Filed Jul. 14, 2020, PCT No. PCT/US2020/041909
§ 371(c)(1), (2) Date Jan. 13, 2023,
PCT Pub. No. WO2022/015288, PCT Pub. Date Jan. 20, 2022.
Prior Publication US 2023/0321995 A1, Oct. 12, 2023
Int. Cl. B41J 2/21 (2006.01)
CPC B41J 2/2142 (2013.01) 14 Claims
OG exemplary drawing
 
1. A computer implemented method comprising:
based on a vulnerable nozzle map indicating one or more operational nozzles of a printhead identified as meeting a failure likelihood criterion,
during a print job and between successive print passes of the printhead in the print job,
checking operation of the one or more operational nozzles indicated on the vulnerable nozzle map;
wherein checking the operation of the one or more operational nozzles indicated on the vulnerable nozzle map and selecting nozzles by an error-hiding algorithm to provide a reduction of printing errors is performed such that the print job with checking the operation of one or more operational nozzles and selecting nozzles by an error-hiding algorithm takes substantially the same time as performing the print job without checking the operation of one or more operational nozzles.