Printer Storage Status Display for Authenticated Users
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Solution Overview
Problem
In printing apparatuses with user authentication functions, when the storage area runs out, authenticated users cannot determine why their print jobs are not displayed, as both their jobs and those of other users are hidden from the list, making it difficult to take corrective measures.
Innovation Solution
An image processing apparatus with a control unit that displays a list of print jobs associated with authenticated users and information about non-authenticated users, along with a display of storage situation, allowing users to understand the reason for non-displayed jobs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user authentication function is implemented to display only print jobs from authenticated users, then security and usability are improved, but when storage area runs out, authenticated users cannot determine why their print jobs are not displayed
Solution Approach 1:
The system provides feedback to authenticated users about the storage situation by displaying information about print jobs from non-authenticated users when the storage area is full. This feedback mechanism allows users to understand why their print jobs cannot be displayed without compromising the authentication security.
2Ease of operation
If only print jobs from authenticated users are displayed, then ease of operation is improved, but when storage is full, users cannot identify the reason for non-displayed jobs
Solution Approach 1:
The system uses information about non-authenticated user's print jobs as an intermediary indicator to convey the storage capacity status to authenticated users. This indirect method allows users to detect the storage situation without changing the authentication-based display mechanism.
3Device complexity
If storage area is limited to maintain device complexity, then device complexity is reduced, but authenticated users cannot determine why their print jobs are not displayed when storage is full
Solution Approach 1:
The system uses the existing storage structure and display mechanisms to provide storage status information automatically. By displaying information about non-authenticated user's print jobs, the system self-indicates the storage capacity status without requiring additional complex storage management interfaces.
Data Source
AI summary
An image processing apparatus includes a storage to store print data, a display device to display information, and at least one processor that executes a set of instructions. The instructions when executed, cause the apparatus to perform operations including receiving a predetermined user operation for printing, and specifying a user logging into the image processing apparatus. In a particular case, the display device is caused to display a print screen for receiving a user instruction to the stored print data. In another case, the display device is caused to display a confirmation screen for indicating a usage status of the storage. The confirmation screen is configured to include at least user information indicating users associated with the print data stored in the storage, and not to include information indicating a name of the print data stored in the storage.