Printing Device Authentication Timing Control
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Solution Overview
Problem
The throughput of print data reception is temporarily deteriorated when an authentication process is conducted concurrently with the reception of large quantities of print data, especially in low-speed network environments, leading to potential interruptions in the print process.
Innovation Solution
A printing device that disconnects from the network upon authentication failure and requests authentication before initiating the print process, ensuring the authentication process does not interfere with the print process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication process is conducted concurrently with print data reception, then network security is maintained through periodic re-authentication, but print throughput is temporarily deteriorated
Solution Approach 1:
The patent applies preliminary action by requesting authentication before the print process starts. The authentication requesting means sends an authentication request to the authentication device prior to initiating data reception, ensuring authentication is completed in advance. This prevents concurrent authentication during printing, thereby maintaining network security while avoiding throughput deterioration during the print process.
2Productivity
If authentication is requested before print process, then print throughput is maintained, but authentication timing must be precisely controlled
Solution Approach 1:
The patent implements feedback control where the controller monitors the authentication state and dynamically adjusts authentication timing. The controller determines whether to request authentication based on current print process status and authentication requirements, providing feedback control that simplifies timing management while maintaining throughput.
Data Source
AI summary
The advantage of the invention is to prevent the efficiency of printing from being deteriorated due to execution of an authentication process during a print process by arranging an authentication process not to be conducted during a print process. The multi-purpose device is connected to the authentication switch through the LAN. The authentication switch conducts an authentication process of a device connected to the LAN, and disconnects a connection between the device and the network in a case where the device cannot be authenticated. The multi-purpose device has the authentication requesting section that requests the authentication process with respect to the authentication switch; and the printing mechanism that prints print data. In a case where the printing mechanism conducts the print process, the authentication requesting section requests the authentication process before the printing mechanism starts the print process.