Image Forming Apparatus Log Transmission Rate Control
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Solution Overview
Problem
Existing image forming apparatus systems experience slower communications and increased CPU load due to excessive network bandwidth occupation during log transmission, which affects printing and UI processing.
Innovation Solution
An image forming apparatus is configured with a transmission unit, reception unit, determination unit, and notification unit to manage log transmission by scheduling operation information transfer, determining link speed for log storage, and controlling transfer rates to prevent bandwidth overload, thereby minimizing the impact on other processing tasks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If log transmission is performed at maximum transfer rate, then log transmission speed is improved, but network bandwidth for other communications becomes insufficient
Solution Approach 1:
The patent applies dynamics by making the transfer rate adjustable rather than fixed at maximum. The determination unit dynamically selects between first and second transfer rates based on network conditions and log data size, allowing the system to adapt bandwidth usage to prevent other communications from becoming slow while still achieving efficient log transmission.
2Speed
If log transmission is performed at maximum transfer rate, then log transmission speed is improved, but CPU load becomes too heavy affecting printing and UI processing
Solution Approach 1:
The patent applies dynamics by making the transfer rate adjustable rather than fixed at maximum. The determination unit dynamically selects between first and second transfer rates based on network conditions and log data size, allowing the system to adapt bandwidth usage to prevent other communications from becoming slow while still achieving efficient log transmission.
3Productivity
If transfer rate is controlled to prevent bandwidth overload, then network bandwidth for other communications is maintained, but log transmission speed decreases
Solution Approach 1:
The patent applies partial action by transmitting log data in portions rather than all at once. The system determines appropriate transfer rates and transmits logs at controlled speeds, allowing other communications to proceed without interference while still achieving complete log transmission, thus balancing both requirements.
Data Source
AI summary
A CPU of an image forming apparatus acquires a transmission instruction for a log, destination information on a WebDAV server, authentication information, and the like from a management server in accordance with a schedule set by the management server, determines whether or not special log information is to be transmitted to the WebDAV server in accordance with a link speed with respect to the WebDAV server, and notifies the management server of an error when it is determined that the special log information is not to be transmitted. Further, when it is determined that the special log information is to be transmitted, the CPU transmits the special log information to the WebDAV server by using the destination information and the authentication information.