Hewlett-packard Development Company, L.p.

Joan-Manel Garcia

Alejandro Manuel De Pena

Francesc Subirada

Santiago Garcia Reyero

Santiago Garcia-Reyero

When condition of a printing element (e.g. inkjet nozzle) changes, essentially full mask rows invoking the element are redone from scratch, best so as to fully satisfy pixel-grid neighbor conditions. This is faster than redoing a whole mask as in prior popup or precook /reheat methods, and yields better printouts than prior row-by-row mask revision (e.g. directly replacing a weak nozzle by a good one across whole rows). This method is best independent of prior mask versions, and uses no prebuilt matrix of backup/alternate entries. The number of rows redone is typically 7% to 14% below a nominal/baseline value.

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Sant Cugat, Spain

Joan-Manel Garcia