Image Formation Apparatus Power Management via Communication Line
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image formation apparatuses that receive power via a communication line cannot operate during main power source interruptions and require main power to be turned on after authentication, limiting their ability to receive data and perform tasks.
Innovation Solution
An image formation apparatus equipped with a control unit, power conversion unit, separation unit, communication unit, power supply unit, switch, manipulation unit, and authentication unit, allowing it to manage power supply efficiently by converting external power, separating communication and power signals, and authenticating users to switch between power states, enabling operation during main power interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the main power source is turned on after authentication, then power consumption is reduced and security is improved, but the apparatus cannot receive data or perform tasks during power interruptions
Solution Approach 1:
The power supply system is segmented into two independent paths: one for the main power source and another for the communication line power supply. This allows the communication unit to be powered separately via the communication line, enabling data reception even when the main power source is interrupted. The segmentation resolves the contradiction by allowing selective power supply to different functional modules.
Solution Approach 2:
The authentication unit performs authentication in advance before activating the main power source. This preliminary authentication ensures security requirements are met before power consumption increases, while the communication unit remains operational throughout to receive data. This resolves the contradiction by separating the timing of authentication from the timing of full power activation.
2Reliability
If authentication is required to turn on the main power, then security is improved, but the apparatus cannot operate during power interruptions
Solution Approach 1:
The system is divided into authentication-critical functions (main power control) and non-authentication-critical functions (communication unit). The communication unit operates independently without requiring authentication, allowing it to receive data during power interruptions while the main power remains controlled by authentication. This segmentation resolves the contradiction between security and operational flexibility.
Solution Approach 2:
The communication line serves as an intermediary power supply path that bypasses the authentication requirement for the communication unit. This intermediary power source enables the communication unit to remain operational during main power interruptions, resolving the contradiction between security-controlled power supply and continuous operational capability.
3Productivity
If the switch is kept closed to allow operation, then the apparatus can receive data and perform tasks, but power consumption increases
Solution Approach 1:
The switch state is made dynamic rather than static. The switch closes automatically when data is received via the communication line, allowing operation only when needed. This dynamic control enables the apparatus to maintain low power consumption during idle periods while being capable of receiving and processing data when required, resolving the contradiction between productivity and energy efficiency.
Solution Approach 2:
The system incorporates feedback mechanisms where the control unit monitors incoming data signals and automatically controls the switch state accordingly. When data is detected on the communication line, the switch closes to enable operation; when no data is present, the switch opens to reduce power consumption. This feedback-based control resolves the contradiction by making power consumption responsive to actual operational needs.
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
Enables the apparatus to receive data and perform tasks, such as printing, while maintaining low power consumption and enhanced security by allowing only authorized users to activate the device, even when the main power is off.
Implementation Method 1
a power conversion unit, which converts external power into first drive power
Implementation Method 2
a separation unit, which separates a communication signal and power flowing in the data communication line
Data Source
AI summary
A message displaying area displays a message “DATA HAS BEEN RECEIVED”, which indicates that a print instruction has been received, as well as a message “CONDUCT AUTHENTICATION”, which urges a user to enter identification information. On the other hand, an input area displays a form in which a “username” and a corresponding “password” are to be entered. Specifically, a display presents an entry screen for identification information, including messages indicating that a print instruction has been received and authentication is required.