Hewlett-packard Development Company, L.p.

Pau Costal Fornells

Peter Morovic

Javier Maestro Garcia

Andreas Muller

Sergio Etchebehere Juan

Pere Josep Canti Nicolas

Jan Morovic

Antonio Gracia Verdugo

Albert Franco Morera

Andreas Müller

Oscar Martinez Bailac

Marta Ramis Llinares

Norman Guillo

Manuel Agudo Acemel

An example of a printing carriage system is disclosed. The example disclosed herein comprises a plurality of printheads, and a positioning mechanism. The plurality of printheads comprises a moveable printhead that is moveable with respect to other printheads from the plurality of printheads. The positioning mechanism is to move the moveable printhead from a first printhead position to a second printhead position.

Moveable printheads

Mask entries for each of a plurality of passes over which print fluid drops are to be dispensed for printing an image are generated based on different types of masks and based on image data for the image. Print fluid drop dispensation for a pixel for which the mask entries for a given pass specify repeated print fluid drop dispensation is moved to a mask entry for an adjacent pass that does not specify print fluid drop dispensation for the pixel. Ejection of print fluid to print the image is caused based on the generated mask entries.

Print fluid drop dispensation mask with entry moved to entry for adjacent pass to avoid repeated dispensation for a pixel per pass

The disclosure relates to a rendering apparatus, method and non-transitory machine-readable storage medium for determining a speed of a carriage during rendering of an image. A plurality of swaths of rendering fluid are deposited on a print target using a set of printheads moving across the print target. A temperature of a curing module is measured at a respective time of depositing each respective swath. An arrival time for each deposited swath to respectively arrive at the curing module is predicted. The speed of the carriage during depositing the plurality of swaths is determined based on the measured temperature of the curing module and predicted arrival time for each respective swath.

Determination of rendering speed based on the measured temperature of a curing module

A hybrid-masked halftone area Neugebauer separation (HANS) pipeline for a printing system is constructed. A number of Neugebauer Primaries (NPs) of and a halftone pattern to employ within the pipeline are selected according to specified ink interaction constraints during printing system ink output onto media, at a native resolution of the printing system. An NP area coverage (NPac)-based lookup table (LUT) and a pre-LUT color profile to employ within the pipeline are constructed according to first specified ink coverage and usage constraints during the ink output, at the native resolution. LUT post-processing and post-halftone pattern masking to employ within the pipeline are determined according to second specified ink coverage and usage constraints during the ink output, at the native resolution.

Hybrid-masked halftone area Neugebauer separation (HANS) pipeline

A method is disclosed. The method may involve obtaining information indicative of a number of printing passes of a print head to print a swath on a printable medium. The method may comprise determining that the print head is to perform a particular printing pass which is one of: a printing pass during which an amount of print agent to be deposited from nozzles of the print head differs, by an amount that exceeds a defined threshold, from an amount of print agent to be deposited from the nozzles during a printing pass immediately preceding said particular printing pass; and a printing pass to print a swath which is the first of a plurality of adjacent swaths in which each swath has an area coverage exceeding a defined threshold. The method may comprise preparing, based on said obtained information, a schedule for a nozzle spitting procedure to commence before the print head performs the particular printing pass.

Print head nozzle spitting

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Sant Cugat del Valles, Spain

Pau Costal Fornells