Printing Device Dual Channel Control System
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Solution Overview
Problem
Existing control systems for printing devices lack efficiency in processing print data, as they do not have a simple means to execute processes appropriate to the type of print data, leading to inefficiencies in data communication and processing.
Innovation Solution
A control system with a printing device featuring a communication unit that uses two channels for data communication, one for encrypted data and another for unencrypted data, allowing the system to process and print data based on the appropriate channel, and a control device with a web browser that transmits data accordingly, using encryption and decryption as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single communication channel is used for all print data, then the device complexity is reduced, but the productivity is lowered due to inability to execute appropriate processes for different data types
Solution Approach 1:
The communication unit is divided into a first channel for encrypted data and a second channel for unencrypted data. This segmentation allows the system to process different types of print data through appropriate channels, improving printing efficiency by executing suitable processes for each data type while maintaining manageable device complexity through clear channel differentiation.
2Reliability
If encryption is applied to all print data, then the reliability is improved, but the productivity is reduced due to unnecessary decryption processes for non-sensitive data
Solution Approach 1:
Encryption is applied selectively based on the sensitivity of the print data. The communication unit determines whether to use the first encrypted channel or the second unencrypted channel based on the specific data being transmitted. This local quality approach ensures that only sensitive data undergoes encryption and decryption processes, maintaining high security where needed while preserving processing speed for non-sensitive data.
3Adaptability or versatility
If multiple communication channels are implemented, then the adaptability is improved for handling different data types, but the device complexity increases
Solution Approach 1:
The communication unit is segmented into two distinct channels: a first channel for encrypted data and a second channel for unencrypted data. This segmentation provides adaptability for handling different data types appropriately while keeping device complexity manageable through a clear, binary channel structure that is easy to implement and maintain.
Solution Approach 2:
The communication unit is designed with multi-functionality, capable of handling both encrypted and unencrypted print data through its two channels. This universal design allows the same communication unit to adapt to different data types and security requirements without requiring separate dedicated systems, thereby improving versatility while controlling complexity.
Data Source
AI summary
A printer 11 can connect to a tablet device 10 that generates and transmits data using a browser function; has a communication unit 20b that receives data from the tablet device 10 on either a first logical communication channel K1 or a second logical communication channel K2 and processes the received data as required according to the communication channel; and has a print unit control unit 20a that prints based on data received by the communication unit 20b.