Multistage Connection Authentication via Electrical Resistance
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Solution Overview
Problem
Existing printing apparatus systems face failures in authentication processes, leading to incorrect paper supply from lower stage trays despite the upper stage trays being designated for use, due to complex configurations and unreliable authentication mechanisms.
Innovation Solution
A printing apparatus system with a simple configuration that includes a printing apparatus and multiple connection devices, each equipped with a controller, communication unit, and electric resistance, which executes an authentication process and level process to correctly identify and authenticate the connection devices, ensuring proper paper supply from the intended stage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex authentication process is implemented to ensure reliable paper supply, then the reliability of the printing apparatus is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical authentication mechanisms with a simple electrical resistance-based detection system. The connection device includes a resistance detection unit that measures electrical resistance to authenticate the connection status, eliminating the need for complex mechanical switches or sensors while maintaining reliable authentication.
Solution Approach 2:
The patent changes the authentication parameter from complex mechanical position detection to simple electrical resistance measurement. By monitoring resistance values that change with connection status, the system achieves reliable authentication through a single physical parameter, reducing overall system complexity.
2Adaptability or versatility
If multiple connection devices are connected in multistage configuration, then the adaptability of the printing apparatus is improved, but the difficulty of detecting and measuring connection status increases
Solution Approach 1:
The patent segments the multistage connection system into independent detection units, with each connection device equipped with its own resistance detection unit. This segmentation allows each stage to be authenticated independently through simple resistance measurements, making the overall multistage detection manageable and scalable.
Solution Approach 2:
The patent introduces electrical resistance as an intermediary parameter to detect connection status. Instead of directly detecting complex mechanical connection states, the system uses resistance values as an intermediate indicator that simplifies the measurement process, making it easier to detect and measure connection status across multiple stages.
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
The system enhances the reliability and durability of the printing apparatus by enabling sequential authentication of multiple connection devices in a multistage configuration, preventing malfunctions due to excessive connections and ensuring accurate paper supply, thus improving operational efficiency.
Implementation Method 1
an electric resistance connecting the device side output connector to the device side input connector
Data Source
AI summary
A printing apparatus system, comprising: a printing apparatus; and connection devices connected to the printing apparatus in multistage, wherein a device side controller is configured to: execute an authentication process in cooperation with an apparatus side controller when a signal is input thereto, the signal corresponding to a start command signal output from the printing apparatus and input to an electric resistance; and execute a level process where a voltage level of the start command signal passed the electric resistance is set to be higher than or equal to a predetermined level when the authentication process is finished, wherein the apparatus side controller is configured to store identification information assigned to each of the connection devices and number-of-stage information indicating, for each of the connection devices, which stage a connection device associated with the identification information is connected to, wherein the identification information is associated with the number-of-stage information.