Printing System Pre-Transmission Authentication Wait Time
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Solution Overview
Problem
Conventional printing systems require users to input authentication data before printing, leading to a long wait time for output and complex data management, especially when print data storage capacity is insufficient.
Innovation Solution
A printing system with a host device and terminal devices that allows pre-transmission of print data to a storage device before user authentication, enabling immediate printing upon successful authentication and simplifying data management by deleting unused data to free up storage space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If print data is transmitted to the printing device after user authentication, then information leakage is suppressed, but user wait time increases
Solution Approach 1:
The system transmits print data to the printing device before user authentication occurs. The printing device stores the received print data in its storage unit, so when authentication is completed, the data is already ready for immediate printing, eliminating the wait time that would otherwise occur during data transmission after authentication.
2Loss of time
If print data is transmitted before user authentication, then user wait time is reduced, but data management complexity increases
Solution Approach 1:
The system extracts and deletes print data from the printing device's storage unit after the printing operation is completed. This removes the data from the device, reducing the management burden and preventing potential information leakage, while still allowing the data to be used during the printing process.
Solution Approach 2:
The system discards print data from the printing device's storage after successful printing. The data is temporarily held during the printing process but is then deleted, balancing the need for immediate data availability with the need to reduce long-term storage management complexity and security risks.
3Speed
If print data is stored in the printing device, then immediate printing is enabled, but storage capacity requirements increase
Solution Approach 1:
The system deletes print data from the printing device's storage after the printing operation is completed. This allows the device to maintain a small storage capacity for temporary data holding during printing, while not requiring large long-term storage capacity, as data is removed after use.
Data Source
AI summary
A printing system is configured such that, when authentication data is input by a user and a print request is made, if print data regarding the print request is stored in a printing device side storage, the printing device prints images on a printing sheet based on the print data stored in the printing device side storage, while, if the print data has been deleted by the printing device side deletion unit and is not stored in the printing device side storage, the printing device transmits print data request data identifying the print data regarding the print request to a host device and obtains the print data regarding the print request, and prints images on the printing sheet based on the obtained print data.