Digital Print Preflight Color Data Processing

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Solution Overview

Problem

The processing of document data containing color information for printing systems is complex and time-consuming, leading to significant delays and production losses due to color inconsistencies and unsuitable color profiles, especially when handling large print files.

Innovation Solution

A preflight process that analyzes and alters color data using a graphical user interface, generating conversion rules to transform input color data into output color data, optimizing the color profile for faster processing and accurate output, particularly by converting color elements on a page-by-page basis and selecting the appropriate output color profile from predefined options like CMYK, RGB, or LAB.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If comprehensive color processing and conversion algorithms are applied to ensure accurate color reproduction, then color accuracy is improved, but processing time increases significantly

Engineering Contradiction:
Improvecolor accuracyVSAvoidprocessing time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system performs preflight processing before actual printing to identify and correct color profile issues in advance. Color data is analyzed and converted to suitable profiles beforehand, preventing processing delays during the actual printing operation. This preliminary action ensures both color accuracy and maintains printing speed by resolving color issues before they cause bottlenecks.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically changes color profile parameters based on the specific printing system and document requirements. Different color profiles (CMYK, RGB, LAB, HLC, OCA) are selected and adjusted according to the output device capabilities and document type, optimizing the balance between color accuracy and processing efficiency for each specific case.

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If color data is processed using standardized color systems and conversion algorithms, then color consistency is improved, but device complexity increases

Engineering Contradiction:
Improvecolor consistencyVSAvoidprocessing complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The system implements a universal preflight processing framework that handles multiple color profiles (CMYK, RGB, LAB, HLC, OCA) and various document formats through a single integrated architecture. This multi-functional approach maintains color consistency across different printing systems while avoiding the need for separate complex processing paths for each color model.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system introduces an intermediary preflight processing layer between document creation and printing output. This intermediary analyzes color data, identifies inconsistencies, and performs necessary conversions before data reaches the printer, simplifying the overall system by centralizing color management functionality in a dedicated processing stage.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If preflight processing is performed to check color data consistency, then color inconsistencies are reduced, but processing time increases

Engineering Contradiction:
Improvecolor consistencyVSAvoidprocessing speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system performs selective preflight processing, focusing on critical color profile checks and conversions that have the greatest impact on printing quality. Not all color data requires the same level of scrutiny - the system identifies and processes only those elements that would cause problems if left unchecked, reducing overall processing time while maintaining reliability.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The preflight processing is divided into separate modular stages: color profile identification, consistency checking, conversion rule generation, and actual conversion. This segmentation allows each stage to be optimized independently and enables parallel processing of different document sections, improving overall processing speed while maintaining thorough color consistency checks.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS8570593B2Process, a computer and a computer program for processing document data having color data
Publication Date: 2013.10.29 OCE PRINTING SYST GMBH
  • US8570593B2 patent drawing
  • US8570593B2 patent drawing
  • US8570593B2 patent drawing

AI summary

In a preflight process for digital print systems, color data from print data are analyzed and the results presented in a report. The color data are individually altered in regard to not only a color profile, in which they are encoded, but also in regard to their color values, using a graphic user interface. Results of the alterations are displayed using corresponding screened document pages.