Copying Apparatus Color Detection Image Adjustment
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Solution Overview
Problem
Conventional copying apparatuses perform unnecessary image adjustments during black-and-white printing, leading to wasteful toner consumption and increased wait times, as they do not differentiate between black-and-white and color images before initiating image adjustment processes.
Innovation Solution
A copying apparatus that includes a reader to detect whether a document is a color or black-and-white image, and only forms marks for image adjustment if a color image is detected, thereby optimizing image adjustment for color printing and avoiding unnecessary processes during black-and-white printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If image adjustment is performed for all printing tasks, then color image quality is improved, but productivity decreases and toner is wasted during black-and-white printing
Solution Approach 1:
The system dynamically adjusts the image adjustment process based on the detected document type. When a color document is detected, full image adjustment including mark formation is performed. When a black-and-white document is detected, the system skips the mark formation step and proceeds directly to printing, optimizing the process in real-time according to actual needs
Solution Approach 2:
The system changes the operational parameters of the image adjustment process based on document color detection. For black-and-white documents, the mark formation parameter is set to false, eliminating unnecessary toner consumption and processing time while maintaining adequate printing quality
2Manufacturing precision
If image adjustment is performed before printing, then image quality is improved, but wait time increases
Solution Approach 1:
The system performs only the necessary portion of the image adjustment process based on document type. For black-and-white documents, it performs partial adjustment (skipping mark formation), which is sufficient for maintaining image quality while significantly reducing the time required compared to full adjustment
3Device complexity
If image adjustment is executed without document type detection, then the process is simple, but toner consumption increases due to unnecessary adjustments
Solution Approach 1:
The system performs preliminary detection of the document type (color or black-and-white) before initiating the image adjustment process. This preliminary action allows the system to determine the appropriate level of adjustment needed, preventing unnecessary toner consumption during mark formation for black-and-white documents
Data Source
AI summary
A copying apparatus includes: a reader that reads an image on a document; an image forming unit that forms on a recording medium the image read by the reader; and a detector configured to detect a color image from the image read by the reader and trigger the image forming unit to form a mark for image adjustment before forming the color image on the recording medium if the detector detects the color image.