Page Identification Mark Correction Indicators
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Solution Overview
Problem
Existing image forming apparatuses face challenges in visually confirming the correct order of pages, especially when corrections or additions are made, as existing page identification marks do not provide immediate and clear indication of page replacements or additions.
Innovation Solution
Incorporating an identification-mark making unit that creates page identification marks with correction/addition marks, which indicate changes, allowing for accurate determination of page order by displacing marks on the paper sheet during printing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional page identification marks are used, then the printing process is simple, but the visual confirmation of page order and corrections is insufficient
Solution Approach 1:
The page identification mark is segmented into multiple functional components: a base mark indicating page number, and additional correction/addition marks that are superimposed on specific portions of the base mark. This segmentation allows the system to convey multiple types of information (page order, corrections, additions) using a structured composite mark system that remains visually manageable.
Solution Approach 2:
The correction/addition marks are nested within or superimposed on the base page identification mark. The correction/addition mark contains information about page modifications and is positioned within the visual footprint of the original page mark, creating a nested information structure where multiple layers of meaning coexist in a compact visual form.
2Reliability
If correction and addition marks are added to page identification marks, then visual confirmation of page changes is improved, but the mark-making process becomes more complex
Solution Approach 1:
The system performs preliminary analysis of the print data to identify which pages require correction or addition marks before the actual mark-making process. The identification-mark making unit pre-determines the positions and types of correction/addition marks needed based on the print job characteristics, allowing the physical mark application to proceed systematically without complex real-time decision-making.
Solution Approach 2:
The identification-mark making unit acts as an intermediary between the print data processing system and the physical printing process. It translates abstract correction and addition information into concrete visual mark positions and patterns, mediating between the digital representation of page modifications and their physical manifestation on printed sheets through a standardized mark-making language.
3Ease of operation
If marks are displaced off on end portions of paper sheets, then immediate visual confirmation of page order is achieved, but the marks may be cut off or lost during handling
Solution Approach 1:
Different regions of the page identification mark serve different functions: the base mark portion is positioned to ensure visibility and page identification, while the correction/addition mark portions are strategically placed within the visible area to indicate modifications. The mark system employs local quality variations in positioning and styling to optimize both visibility and information conveyance without compromising mark integrity during handling.
Data Source
Figure 1A~1D
Figure 2
Figure 3A~3B
AI summary
An image forming apparatus (10) includes an identification-mark making unit (60). The identification-mark making unit (60) makes a page identification mark (11,12,13,14,12a,13a,13b) for identifying a page, on a predetermined position of a paper sheet during printing. The identification-mark making unit (60), based on the page identification mark (11,12,13,14,12a,13a,13b) made in a previous printing, includes a correction/addition mark (12a1,13a1,13b1) that indicates an existence of a correction page or an additional page since the previous printing in a part of the page identification mark (11,12,13,14,12a,13a,13b) when a new print output is performed.