Image Forming Colorimetry Control for Faster Chart Calibration
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Solution Overview
Problem
Conventional image forming systems require lengthy processing times due to the need for colorimetry operations on color adjustment charts, even when errors are detected, leading to inefficiencies.
Innovation Solution
The system includes a colorimetry section positioned downstream in the conveyance direction, allowing for error detection before performing colorimetry, and controlling the colorimetry section based on read images to optimize processing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the number of color patches in a color adjustment chart is increased to perform highly precise color correction, then manufacturing precision is improved, but processing time increases
Solution Approach 1:
The patent performs preliminary error determination by reading the color adjustment chart image before performing colorimetry. The control section checks whether the color adjustment chart is properly formed by analyzing the read image, and only proceeds with colorimetry if no errors are detected. This preliminary action prevents unnecessary colorimetry operations and reduces processing time while maintaining color correction precision.
2Manufacturing precision
If colorimetry is performed on all color patches to ensure accurate color correction, then manufacturing precision is improved, but productivity decreases
Solution Approach 1:
The control section performs preliminary error determination by reading the color adjustment chart image and analyzing whether the chart is properly formed before initiating colorimetry. This preliminary check allows the system to skip colorimetry operations when errors are detected, thereby maintaining productivity while ensuring colorimetry accuracy is performed only when necessary.
3Reliability
If the colorimetry section operates to detect colorimetry errors, then reliability is improved, but processing time increases due to unnecessary operations
Solution Approach 1:
The control section performs preliminary error determination by reading the color adjustment chart image and analyzing whether the chart is properly formed before the colorimetry section operates. This preliminary action ensures that the colorimetry section only operates when the color adjustment chart is correctly formed, maintaining reliability while avoiding unnecessary operations that would increase processing time.
Solution Approach 2:
The reading section acts as an intermediary between the color adjustment chart and the colorimetry section. It reads the color adjustment chart image and provides error determination information to the control section, which then decides whether to activate the colorimetry section. This intermediary mechanism ensures reliable error detection while preventing unnecessary colorimetry operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces processing time by avoiding unnecessary colorimetry operations, thereby enhancing system efficiency and accuracy.
Implementation Method 1
a reading section that reads an image formed on the recording medium
Implementation Method 2
a colorimetry section that is disposed downstream of the reading section in a conveyance direction of the recording medium, and performs colorimetry on a color adjustment chart formed on the recording medium
Data Source
AI summary
Disclosed is an image forming system including: an image forming section that forms an image on a recording medium; a reading section that reads the image formed on the recording medium; a colorimetry section that is disposed downstream of the reading section in a conveyance direction of the recording medium, and performs colorimetry on a color adjustment chart formed on the recording medium; and a hardware processor that controls the colorimetry section based on the image read by the reading section.