Image Forming Apparatus Layout Processing Offset Registration
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Solution Overview
Problem
Existing image inspection systems require manual verification of reference images, which is time-consuming and prone to errors, especially when dealing with large numbers of pages, due to misalignment issues caused by differences in image and sheet sizes.
Innovation Solution
An image forming apparatus that executes layout processing based on the size of the printing medium and image data, calculates offset information, and stores the processed image data along with this information for accurate registration and inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If image data is registered in the inspection apparatus as reference images without layout processing, then the registration process is simple, but misalignment occurs between read images and reference images due to size differences
Solution Approach 1:
The patent applies preliminary action by executing layout processing on the image data before registration. The controller performs layout processing in advance to calculate offset information that compensates for the difference between image data size and sheet size, ensuring accurate alignment during subsequent inspection without requiring complex manual adjustment
2Reliability
If manual visual check of reference images is performed, then operator control over image quality is maintained, but verification time increases and operation errors occur
Solution Approach 1:
The patent applies self-service by enabling the system to automatically generate and register reference images through automated layout processing. The controller automatically calculates offset information and registers the processed image data, eliminating the need for manual visual verification while maintaining image quality through programmed compensation for size differences
3Measurement precision
If image data size is made equal to sheet size, then alignment between read images and reference images is accurate, but flexibility in handling different image sizes is reduced
Solution Approach 1:
The patent applies parameter changes by dynamically calculating offset information based on the actual image data size and sheet size combination. The system can handle various image sizes by adjusting the offset parameters rather than requiring fixed size matching, enabling flexible adaptation to different printing scenarios while maintaining accurate alignment
Data Source
AI summary
An image forming apparatus includes a printer configured to print image data on a printing medium, a storage, and a controller configured to compare reference image data with an image printed on the printing medium, wherein the controller is configured to execute layout processing of the image data on the printing medium based on a size of the printing medium and an image size of the image data, calculate offset information in the layout processing of the image data on the printing medium, and store the image data of which the layout processing is executed and the offset information in the storage.