Image Forming Apparatus Paper Feed Deck Access Control
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Solution Overview
Problem
In multi-function peripherals, there is a risk of erroneous usage of special print paper when normal and special paper are mixed in the paper feed decks, as only the user who placed the paper knows its location, leading to potential misuse by other users.
Innovation Solution
An image forming apparatus with a reception unit for authenticated users to specify paper feed units and a prohibition unit to prevent unauthorized users from printing using those units, ensuring that only the authenticated user can use the designated paper feed unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple users share the same paper feed deck, then device utilization and productivity are improved, but the risk of erroneous usage of special paper increases
Solution Approach 1:
The paper feed deck is segmented into multiple virtual regions, each associated with a specific user. The reception unit receives paper feed position information that specifies a particular user's region within the shared paper feed deck, allowing multiple users to share the same physical deck while maintaining distinct access rights for each user.
2Reliability
If paper feed position information is received from authenticated users, then unauthorized usage is prevented, but system complexity increases
Solution Approach 1:
The prohibition unit provides feedback by prohibiting other users from printing when paper is placed in a specific user's designated region. The system monitors paper feed position and uses this information to control access, automatically preventing unauthorized usage without requiring manual intervention or complex authentication protocols for each print job.
3Ease of operation
If special print paper and normal office paper are mixed in the same paper feed deck, then ease of operation is improved, but the risk of paper misuse increases
Solution Approach 1:
Different regions within the shared paper feed deck are assigned different access rights and paper type associations. The reception unit receives information specifying which user's region contains the paper, allowing the system to apply different access control rules to different local areas of the same paper feed deck, thereby maintaining ease of operation while preventing misuse.
Data Source
AI summary
An image processing apparatus that prevents erroneous use of paper by enabling registration of user identification of a user who can use a paper feed deck in information about each paper feed deck of the image processing apparatus and controlling paper feeding so that just the user associated with the user identification can use a paper feed deck to which the user identification was added.