Printing Apparatus User Identification via IPP Authentication Check
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Solution Overview
Problem
Some operating systems (OS) and print systems that support Internet Printing Protocol (IPP) do not support user identification attributes, leading to the inability of servers to identify users when printing jobs are accumulated and printed without a printer driver, resulting in authentication failures.
Innovation Solution
A printing apparatus that includes a reception unit to receive print data from an information processing apparatus and a control unit to return an authentication failure response if user information is missing, and only transmit the data when user information is attached, ensuring that user information is transmitted to a server system along with the print data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If IPP printing is implemented without printer driver support for user identification attributes, then printing compatibility across different OS is improved, but user identification capability deteriorates
Solution Approach 1:
The printing apparatus acts as an intermediary between the information processing apparatus and the server system. It receives print data, checks for user information, and either returns an authentication failure response or transmits the print data to the server system with user information. This intermediary function enables user identification in systems where the OS itself does not support IPP attributes for user identification.
2Reliability
If user information checking is implemented in the printing apparatus, then authentication reliability is improved, but device complexity increases
Solution Approach 1:
The printing apparatus performs preliminary checking of user information before transmitting print data to the server system. The control unit checks whether user information is attached to the print data received from the information processing apparatus, and only transmits the data if user information is present. This preliminary action ensures authentication reliability without requiring complex authentication mechanisms.
Data Source
AI summary
A printing apparatus transmits user information and print data to a server system. The printing apparatus includes a reception unit and a control unit. The reception unit receives print data from an information processing apparatus. The control unit returns a response indicating authentication failure to the information processing apparatus when user information is not attached to the print data received, and transmits the print data to the server system when user information is attached to the print data.