Serial Port Switching for Parallel Communication in Image Forming Apparatus
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Solution Overview
Problem
The existing image forming apparatuses face limitations in connecting with sheet treating apparatuses from different manufacturers due to mismatched communication protocols and signal lines, restricting the flexibility and functionality of these connections.
Innovation Solution
The image forming apparatus is equipped with a communication device that includes both serial and parallel ports, allowing it to determine the appropriate communication method based on the configuration information of the connected sheet treating apparatus and switch between serial and parallel communication as needed, ensuring compatibility and expanded functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If serial communication is used between image forming apparatus and sheet treating apparatus, then communication protocol compatibility is required, but connection flexibility with devices from different manufacturers is reduced
Solution Approach 1:
The image forming apparatus is equipped with both a serial port and a parallel port, enabling it to perform both serial communication and parallel communication. This multi-functionality allows the apparatus to adapt to different communication interfaces required by various sheet treating apparatus from different manufacturers, thereby improving connection flexibility without requiring complex protocol accommodation for each specific device
Solution Approach 2:
The communication method is dynamically switched based on the connection configuration of the sheet treating apparatus. The system determines whether to use serial or parallel communication depending on the connected device's requirements, allowing flexible adaptation to different manufacturers' devices while maintaining simple communication protocols
2Adaptability or versatility
If parallel communication is used with matching signal lines, then communication speed is improved, but connection flexibility is reduced when signal line numbers do not match
Solution Approach 1:
The serial port is designed to be switchable between serial communication mode and parallel communication mode. When connected to sheet treating apparatus with different numbers of signal lines, the system can switch the serial port to parallel communication mode, allowing flexible connection regardless of signal line quantity mismatches while maintaining adequate communication capability
Solution Approach 2:
The communication mode is dynamically determined based on the connection configuration. The system switches between serial and parallel communication depending on whether the connected sheet treating apparatus has matching signal lines, thereby maintaining connection flexibility across different device configurations
3Adaptability or versatility
If both serial and parallel ports are provided, then communication compatibility is improved, but device complexity increases
Solution Approach 1:
The serial port is designed with multi-functionality to perform both serial communication and parallel communication. This allows the system to maintain communication compatibility with various sheet treating apparatus while avoiding the need for separate dedicated parallel ports, thereby reducing overall device complexity
Solution Approach 2:
The functions of serial communication and parallel communication are merged into a single serial port through switching capability. This consolidation reduces the number of physical ports required while maintaining full communication compatibility, thereby simplifying the device structure
Data Source
AI summary
An image forming apparatus to which a sheet treating apparatus is to be connected includes a communication device, having a serial port used for serial communication with the sheet treating apparatus and a parallel port used for parallel communication with the sheet treating apparatus, to communicate with the sheet treating apparatus, and one or more processors. At least one of the one or more processors operates to determine a communication method to communicate with the sheet treating apparatus based on configuration information representing a connection configuration of the sheet treating apparatus, and switch an operation of the serial port such that the serial port of the communication device is used in the parallel communication in a case where a determined communication method is a method in which the parallel communication is performed and the serial communication is not performed.