Print System Preview Image Display Ink Color Determination

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Solution Overview

Problem

Current print systems face inefficiencies in displaying preview images due to the need to analyze entire image data to determine used and unused ink colors, increasing the time required for preview image display.

Innovation Solution

A print system that generates a print job with ink color information and raster image data, allowing the image forming device to determine which ink colors are used and not used, and only display preview images based on the used ink colors, thereby reducing the time needed for preview image generation and display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the entire image data is analyzed to determine used and unused ink colors, then the accuracy of ink color determination is improved, but the time required for preview image display increases

Engineering Contradiction:
Improveink color determination accuracyVSAvoidpreview image display time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent extracts only the necessary ink color information from the print job data without analyzing the entire image data. By taking out specifically the ink color specification information, the system determines which ink colors are used while avoiding the time-consuming process of pixel-by-pixel image analysis, thus resolving the contradiction between determination accuracy and display time

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent performs preliminary extraction of ink color information during the print job data reception phase, before the preview image generation process begins. By determining the used ink colors in advance based on the print job's ink color specifications, the system prepares the necessary information beforehand, eliminating the need for time-consuming image analysis during preview generation

Inventive Principle:
Principle #10Preliminary action

2Loss of information

If preview images of all ink color versions are displayed, then the completeness of preview information is improved, but the complexity of the display system increases

Engineering Contradiction:
Improvepreview information completenessVSAvoiddisplay system complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent applies local quality by displaying preview images selectively based on the actual ink colors used in the print job. Instead of uniformly displaying all possible ink color versions, the system adjusts the preview display to show only the relevant versions corresponding to the used ink colors, thereby maintaining information completeness while reducing display system complexity

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent employs partial action by displaying only the necessary subset of preview images corresponding to used ink colors rather than all possible versions. This partial display approach maintains sufficient preview information for the user while avoiding the complexity of managing and displaying all potential ink color combinations

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS11561749B2Print system, preview image display method, print job generating device, image forming device, storage medium storing print job generating program, and storage medium storing preview image display program
Publication Date: 2023.01.24 SEIKO EPSON CORP
  • US11561749B2 patent drawing
  • US11561749B2 patent drawing
  • US11561749B2 patent drawing

AI summary

A print system includes a print job generating device including a print job generating section configured to generate a print job including ink color information indicating ink colors to be used in printing and raster image data for each of the ink colors, and a transmission section configured to transmit the generated print job to an image forming device, and an image forming device including a reception section configured to receive a print job transmitted from the transmission section, a processing section configured to determine ink colors to be used in printing and ink colors not to be used in printing based on the ink color information included in the print job, and a display controller configured to display preview images indicated by the raster image data of the ink colors to be used in printing in a display section based on a result of the determination.