RFID Tag Management in Image Formers
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Solution Overview
Problem
Image forming apparatuses face challenges in writing data to specific RFID tags within their communication range due to interference or proximity issues, leading to unsuccessful data transfer.
Innovation Solution
The apparatus includes a communication device with an antenna and a processor that controls data transmission and reception, reads tag identification information, and manages a list of successfully written tags to ensure data is written only to unmarked tags, using a network interface to connect with other devices for tag management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the image forming apparatus attempts to write data to all RFID tags within communication range, then the productivity increases, but the reliability decreases due to failed writes on tags with interference or proximity issues
Solution Approach 1:
The system performs preliminary identification of RFID tags within communication range before attempting data writing. By pre-scanning and identifying target tags, the system prepares a list of candidates for data writing, which improves overall productivity while allowing selective targeting to maintain reliability.
Solution Approach 2:
The system implements feedback by checking whether data writing to an RFID tag was successful. When a write operation fails (due to interference, proximity issues, or other problems), the system receives feedback about the failure and automatically retries the operation on the next identified tag, ensuring that one failure does not halt the entire process and improving overall success rate.
2Quantity of substance
If the communication device reads and processes every RFID tag in range, then the quantity of processed tags increases, but the loss of time increases due to retrying failed writes
Solution Approach 1:
The system maintains continuous useful action by automatically transitioning from one RFID tag to the next when a data writing attempt fails. Instead of stopping or requiring manual intervention, the system continuously identifies and processes the next available tag within communication range, maximizing the quantity of tags processed while minimizing idle time through automated retry mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables effective data writing to RFID tags on media, preventing data overwrite on already marked tags and ensuring successful image printing on the medium.
Implementation Method 1
The communication device transmits data to, and receives data from, a radio tag on the medium
Data Source
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AI summary
According to one embodiment, an image forming apparatus includes a communication device, a printer, and a processor. The printer prints images on a medium. The communication device transmits data to, and receives data from, a radio tag on the medium. The processor is configured to control the communication device to read tag identification information from the radio tag. If the tag identification information read from the radio tag is already included on a list, the communication device is controlled to attempt to read tag identification information from another radio tag. If the tag identification information read from the radio tag is not yet included on the list, the communication device is controlled to write data to the radio tag, and the printer is controlled to print an image on the medium.