Printer Drum Cartridge Identification Without RFID Tags
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Solution Overview
Problem
The high cost of image forming apparatuses is increased due to the necessity of providing RFID tags with drum cartridges, leading to issues with low image quality, wrong operations, and paper damage when non-approved parts are used.
Innovation Solution
An image forming apparatus with an identification information obtaining process and an operation allowing process that allows normal or limited image formation based on the presence or absence of identification information in exchange parts, eliminating the need for RFID tags in shipped exchange parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RFID tags are provided in drum cartridges to prevent use of imitational parts, then reliability of image formation is improved, but cost of exchange parts increases
Solution Approach 1:
The patent extracts the identification function from the physical RFID tag and implements it through a software-based detection mechanism. The system detects whether an RFID tag is present by attempting to read it, and based on the detection result, determines whether to allow normal operation or limit operations. This removes the requirement to physically attach RFID tags to all drum cartridges, thereby reducing costs while maintaining reliability through operational control.
2Reliability
If RFID tags are required in all drum cartridges, then ability to discriminate approved parts is improved, but device complexity increases
Solution Approach 1:
The patent implements a dynamic operational mode that changes based on detection results. The system can switch between a normal operation mode (when RFID tag is present and verified) and a limited operation mode (when RFID tag is absent or unverified). This dynamic approach allows the system to adapt its behavior to the situation, maintaining part discrimination capability without requiring all drum cartridges to have RFID tags, thus reducing overall device complexity.
3Ease of manufacture
If limited image formation is allowed when no RFID tag is present, then cost of exchange parts is reduced, but image quality may deteriorate
Solution Approach 1:
The patent applies preliminary anti-action by preemptively limiting operations when no RFID tag is detected. Before any potential image quality deterioration can occur, the system restricts operations to essential functions only (such as allowing basic printing but preventing high-quality or complex printing operations). This preventive measure ensures that even though costs are reduced by not requiring RFID tags on all drum cartridges, image quality is protected from deterioration through operational restrictions.
Data Source
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AI summary
An image forming apparatus is supplied capable of lowering cost of exchange part. In the image forming apparatus, the exchange part is furnished being attachable and removable, an identification information obtaining process section to obtain identification information of the exchange part from the exchange part, and an operation allowing process section to allow image formation in the case that the identification information obtaining process section can not obtain the identification information, are comprised, so that it is unnecessary to provide an identification information storing portion for storing the identification information to the exchange part at shipment stage.