Printer Job History Access Control via Terminal Identification
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Solution Overview
Problem
Existing systems for displaying job history in devices like printers require user registration and authentication, leading to increased costs and security concerns as non-users can access job history information.
Innovation Solution
A device and method that restricts job history display by using a processing information storage unit, a history generating unit, a transmitting unit, and a restriction setting unit to generate and transmit job history only to authorized users based on terminal identifying information or PJL information, ensuring secure access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user registration and authentication are implemented to allow users to check job history, then user access to job history is improved, but system complexity and cost increase
Solution Approach 1:
The system automatically identifies the user through the terminal device itself without requiring manual registration. The terminal's identifying information (MAC address, IP address, or device name) is automatically retrieved and used to determine job history access rights, eliminating the need for users to manually register or provide authentication credentials.
Solution Approach 2:
The terminal device acts as an intermediary that automatically provides identifying information to the printing device. Instead of requiring direct user authentication, the terminal's built-in identification capabilities serve as a mediator to establish user identity and access rights automatically.
2Reliability
If user registration is required to access job history, then access security is improved, but cost increases due to storage area requirements
Solution Approach 1:
The system uses the terminal device's existing identifying information (MAC address, IP address, device name) which is already stored in the terminal's memory. This eliminates the need for the printing device to allocate dedicated storage space for user registration data, as the terminal provides its identification information from its own resources.
3Ease of operation
If job history is made accessible to all users, then ease of operation is improved, but security deteriorates as non-users can access history
Solution Approach 1:
The job history display is segmented and filtered based on the identified terminal device. The system retrieves job history information and selectively displays only the portions relevant to the identified user, separating public accessibility from private user-specific information through automatic filtering based on terminal identification.
Data Source
AI summary
A device that performs processing upon receiving a request from a terminal, which includes: a processing information storage unit that stores information relating to the processing; a processing history generating unit that generates a history of the processing based on the information relating to the processing stored in the processing information storage unit; a processing history transmitting unit that transmits the history of the processing generated by the processing history generating unit to the terminal; and a restriction setting unit that sets restriction on the history of the processing, in which the processing history generating unit generates the history of the processing according to the restriction set by the restriction setting unit.