Printer Sheet Identification via Tag-Based Exit Status Notification
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Solution Overview
Problem
Users of image forming apparatuses face difficulties in identifying the correct printed sheets among multiple sheets discharged, often leading to incorrect sheet retrieval, as existing solutions require manual inspection of the print content.
Innovation Solution
An image forming apparatus that includes an image forming unit, a storage unit for client identification data, and a tag system with a communication unit to write and read client information on each sheet, allowing for real-time notification of sheet exit status without manual inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple print commands are processed sequentially and sheets are accumulated in the exit tray, then the image forming apparatus can handle multiple user requests, but users cannot easily identify which sheet corresponds to their command
Solution Approach 1:
The patent applies color changes by displaying unique identification information (such as user names, document titles, or colored indicators) on the display unit corresponding to each sheet's position in the exit tray. This allows users to quickly identify their printed sheets through visual cues without manually inspecting each sheet's content, thereby maintaining multi-user productivity while significantly improving sheet identification ease.
2Quantity of substance
If sheets are discharged with print surface turned down for accumulation, then more sheets can be stored in the exit tray, but users must turn up the sheet to verify content, increasing time and effort
Solution Approach 1:
The patent implements feedback by providing real-time information display on the display unit that shows the exit status and identification details of each sheet in the tray. Users can view sheet positions, associated user information, and document titles without physically manipulating the sheets. This feedback mechanism allows sheets to remain in the space-efficient turned-down position while eliminating the time loss associated with manual verification.
3Reliability
If users manually inspect sheet content to identify their printed material, then accurate sheet retrieval is possible, but the process is time-consuming and error-prone
Solution Approach 1:
The patent introduces an intermediary information display system that mediates between the physical sheets in the exit tray and the users seeking their printed material. The display unit acts as an intermediary by presenting identification information (user names, document titles, sheet positions) that enables accurate sheet retrieval without requiring users to manually inspect sheet content. This intermediary system maintains high retrieval accuracy while dramatically improving retrieval efficiency by eliminating time-consuming manual inspection.
Data Source
AI summary
An image forming apparatus that warns that a JOB fails to be pulled out is provided. Warning processes executed by a CPU of a printer that is one example of the image forming apparatus includes the steps of determining whether a JOB list is updated, setting a job counter JB_S_CTA for checking JOB at an initial value “1” and setting an upper limit counter JB_S_CTB at an upper limit value when the JOB list is updated, executing a failure-to-pull-out warning process if JOBs counted by JB_S_CTA belong to the same client, and incrementing the JB_S_CTA by “1”.