Density classifiers based on plane regions

Patent metadata

Field	Value
Publication number	US-11040329-B2
Application number	US-201916722889-A
Country	US
Kind code	B2
Filing date	Dec 20, 2019
Priority date	Mar 17, 2017
Publication date	Jun 22, 2021
Grant date	Jun 22, 2021

Abstract

In an example, a print system include a component device that is operation in a number of state, a density engine, and a component engine. An example density engine identifies a plane region of a plane where print fluid is to be printed based on data of a print job and determines a density classifier for the plane based on a location of the plane region on the plane. An example component engine causes an adjustment of a component attribute of the component device based on the density classifier.

First claim

What is claimed is:

1. A print system comprising:
a density engine to determine a density classifier for a plane based on a location of a plane region where print fluid is to be printed; and
a component engine adjust a component attribute of a component device based on the density classifier.

2. The system of claim 1 , wherein the density engine:
determines whether print fluid data representing an amount of print fluid to place at a first tile within the plane region achieves a density condition;
assigns a value to the plane region based on a relationship between a location of the first tile and a location of a second tile within the plane region; and
selects the density classifier based on the value of the plane region.

3. The system of claim 1 , wherein the density engine further comprises:
a topograph engine to maintain weights associated with page regions on a page, the page being the plane to receive print fluid based on the print job; and
a factor engine to identify an operational factor of the print system.

4. The system of claim 3 , wherein the density engine:
computes a density score for the page based on a matrix of weights that corresponds to the page regions on the page that achieve a density condition; and
determines the density classifier based on the weighted density score.

5. The system of claim 4 , wherein the density engine:
applies a modifier to the density score based on the operational factor; and
identifies the density classifier using a lookup table with the page score as input.

6. The system of claim 3 , wherein:
the factor engine identifies at least one of a page size or a page orientation; and
the topograph engine at least one of:
selects a topograph based on the page size; or
selects the topograph based on the page orientation.

7. The system of claim 3 , wherein:
the factor engine determines a stage of the page in the print path; and
the density engine adjusts the page score based on the stage of the page in the print path.

8. The system of claim 3 , wherein:
the factor engine identifies an environment variable associated with an operational state of the print system; and
the density engine determines the density classifier based on the environment variable.

9. The system of claim 3 , wherein:
the factor engine identifies a job attribute associated with the page of the print job; and
the density engine determines the density classifier based on the job attribute.

Assignees

• Hewlett Packard Development Co

Inventors

• Beachnau Hood Dawn M
• Shepherd Matthew A
• Mackenzie Mark H
• Sun Weiyun
• Justel Milan
• Yraceburu Robert
• Rasmussen Steve O

Classifications

• B01J20/3014

  Kneading · CPC title

• C02F1/286

  using natural organic sorbents or derivatives thereof · CPC title

• C02F1/288

  using composite sorbents, e.g. coated, impregnated, multi-layered · CPC title

• B01J20/3007

  Moulding, shaping or extruding · CPC title

• C02F1/281

  using inorganic sorbents · CPC title