Image Forming Device Automatic Request Retransmission After Print Error
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Solution Overview
Problem
Multifunctional devices, such as printers, struggle with completing print jobs due to errors like paper jams or ink shortages while connected to the internet, requiring users to disconnect, resolve the issue, and re-specify URLs, which is a tedious process, especially when numerous URL selections are involved.
Innovation Solution
An image forming device with a communication unit, error detection, and control unit that automatically retransmits data requests to a server once the error is resolved, allowing for seamless reprinting without user intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the multifunctional device connects to the Internet for direct printing, then the device can access and print data content from web servers, but the user must manually re-specify URLs after print errors occur, which increases operation complexity and time loss
Solution Approach 1:
The system enables self-service by automatically detecting print errors, storing the original transmission request data and server address in memory, and autonomously retransmitting requests after error recovery without requiring user intervention. The control unit monitors printing status, detects completion failures, and automatically initiates retransmission processes, allowing the device to serve itself during error recovery scenarios.
Solution Approach 2:
The system performs preliminary actions by pre-storing the transmission request data and server address in memory before the printing process completes. This ensures that when a print error occurs, the necessary information is already available for automatic retransmission, eliminating the need for users to re-input URLs or re-select content from menus.
2Ease of operation
If the device automatically retransmits requests after error recovery, then user operation load is reduced, but the device complexity increases due to additional error detection and control mechanisms
Solution Approach 1:
The system merges the error detection function, memory storage function, and control function into an integrated error recovery mechanism. The control unit combines monitoring of printing status, detection of completion failures, retrieval of stored request data, and automatic retransmission initiation into a single coordinated process, reducing overall system complexity while maintaining automatic error recovery capability.
Solution Approach 2:
The system implements feedback by having the control unit continuously monitor the printing process and detect when printing fails to complete. This feedback triggers the automatic error recovery process, where the system retrieves previously stored transmission request data and server addresses, then automatically retransmits requests after error recovery, creating a closed-loop control system that responds to printing status changes.
3Productivity
If the device stores transmission request data in memory for automatic retransmission, then printing continuity is improved after errors, but memory resources are consumed
Solution Approach 1:
The system extracts only the essential information needed for error recovery—specifically the transmission request data and server address—and stores it in memory. This selective extraction approach minimizes memory resource consumption while ensuring that the critical information required for automatic retransmission is available, balancing printing continuity improvement with resource conservation.
Data Source
AI summary
An image forming device transmits a transmission request data to a server on a network and receives content data from the server. The received content data is printed on a recording medium, and the transmission request data transmitted to the server is stored in a memory. When print error is detected before the received data was completely printed, the image forming device notifies a user of the print error. After the print error is resolved, the image forming device automatically retransmit the transmission request data to the server.