Server System Reflecting Usable Print Quantity to Printer
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Solution Overview
Problem
Conventional printing service systems fail to promptly reflect updated printing-related information, such as the usable print quantity, on printers, leading to inconsistencies and inefficiencies.
Innovation Solution
A server system with a communication interface and storage, capable of storing and reflecting the usable print quantity on a printer after reconnection, includes a computer that determines if the updated quantity has been reflected and sends a reflecting instruction if not, ensuring timely updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the server stores updated printing-related information, then the information accuracy is improved, but the reflection speed on the printer side deteriorates
Solution Approach 1:
The server stores updated printing-related information (usable print quantity) in advance before the printer needs it, preparing the data beforehand so that when the printer reconnects, the information can be quickly transmitted and applied without delay
Solution Approach 2:
The system implements a feedback mechanism where the server monitors whether the printer has successfully received and applied the updated information. If the information has not been reflected on the printer side after reconnection, the server sends a notification to prompt the printer to apply the updates, ensuring accurate information synchronization
2Loss of time
If the server continuously monitors printer connection status, then the update timeliness is improved, but the system complexity increases
Solution Approach 1:
The printer autonomously manages its own connection status by detecting when it reconnects to the server and automatically reporting this status. The server simply responds to these self-reported status changes rather than continuously polling, reducing system complexity while maintaining timely update capability
Solution Approach 2:
Instead of continuous monitoring, the system uses periodic check-ins where the printer reports its connection status at intervals or upon reconnection events. This event-driven approach reduces the monitoring burden on the server while ensuring updates are transmitted promptly when the printer becomes available
Data Source
AI summary
In a server system, the computer stores in the printer a usable print quantity in association with a printer in response to an increase request from an external device. The increase request is a request to store an increased quantity as the usable print quantity. The usable print quantity indicates one of the number of sheets and an amount of colorant which are usable for printing in the printer. The computer determines, after a communication interface is disconnected from the printer, whether a reconnection is established between the communication interface and the printer. The computer determines, when the reconnection is determined to be established, whether the usable print quantity has been reflected in data in the printer. The computer sends to the printer, when the usable print quantity is determined not to have been reflected in any data in the printer, a reflecting instruction to reflect the usable print quantity.