Image Shifting and Filling for Copy Position Accuracy
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Solution Overview
Problem
Conventional copiers accumulate positional errors during multiple generations of copying, leading to distorted and incomplete reproduction of documents, especially when handling originals with different widths or incorrect use of original width adjusters.
Innovation Solution
An image processing device with a receiving port, processor, and output port that shifts and fills image data by using partial positioning mark data and main image data to align and complete the image on a typesetting page, adding a predetermined image to the sides of the main image to correct positional errors and maintain document consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional copier performs multiple generations of copying, then copying function is achieved, but accumulated positional error increases causing content loss
Solution Approach 1:
The system scans positioning marks on the original document, detects their actual positions, calculates deviation from standard positions, and uses this feedback information to compensate for positional errors in subsequent copying operations. This closed-loop feedback mechanism prevents error accumulation across multiple copying generations.
Solution Approach 2:
The system dynamically adjusts copying parameters (position, orientation, scaling) based on detected positioning mark data. By changing these parameters according to actual measurements rather than using fixed values, the system maintains position accuracy even when handling documents of different sizes or orientations.
2Manufacturing precision
If original width adjuster is used to restrict document width, then document skewing is prevented, but documents with different widths cannot be copied correctly
Solution Approach 1:
The system replaces static document width restriction with dynamic width adaptation. Instead of forcing all documents to fit a fixed width, the system detects the actual width through positioning marks and adjusts scanning and copying parameters dynamically to accommodate each document's specific dimensions.
Solution Approach 2:
The positioning mark-based detection system serves multiple functions: it detects document position, determines document width, calculates correction parameters, and enables accurate copying regardless of document variations. This universal approach handles both aligned and skewed documents of various widths without requiring manual adjustment.
3Device complexity
If scan boundaries are used for copying, then copying process is simplified, but position deviation occurs due to scan boundary errors
Solution Approach 1:
The system introduces positioning marks as intermediary reference elements between the scan boundaries and the actual document content. These marks serve as mediators that provide accurate position information independent of scan boundary errors, enabling precise content reproduction while maintaining the simplicity of automated scanning.
Data Source
AI summary
An image processing device comprises a receiving port, a processor and an output port. The receiving port receives old image data from a peripheral device. The old image data has partial positioning mark data corresponding to a portion of a positioning mark of a document, and partial main image data corresponding to a partial main image of a portion of a main image of the document. The processor electrically connected to the receiving port shifts the partial main image by a calibration distance in a calibration direction to a standard position of a typesetting page according to the partial positioning mark data and the partial main image data, and adds a predetermined image to one side or neighboring two sides of the partial main image to generate new image data. The output port electrically connected to the processor outputs the new image data. Copy apparatus and method are also provided.