Image Forming Apparatus Voltage Detection Circuit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional image forming apparatuses experience integrity issues due to time differences between high-power-supply voltage generation and circuit control voltage, leading to incorrect signal outputs and decreased performance during power conservation modes.
Innovation Solution
An image forming apparatus with a first circuit unit, a second circuit unit, and a power-supply unit that includes a detection mechanism to accurately determine voltage reductions, allowing the control unit to perform access stopping processing and ensure proper operation by controlling the power-supply voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If power conservation mode is implemented to reduce electric power consumption during standby, then power consumption is reduced, but signal integrity deteriorates due to timing mismatches between voltage generation and circuit operation
Solution Approach 1:
The control module waits for a predetermined period after instructing high-power-supply voltage generation before driving the circuit. This preliminary waiting action ensures that the voltage is fully generated and stable before the circuit begins operation, preventing timing mismatches and signal integrity issues while maintaining power conservation benefits
Solution Approach 2:
The system incorporates voltage detection functionality that monitors the actual voltage generation status and provides feedback to the control module. Based on this feedback, the control module adjusts circuit driving timing to ensure operations only occur when voltage is confirmed to be at appropriate levels, thereby maintaining signal integrity during power conservation mode
Data Source
AI summary
An image forming apparatus comprises a first circuit unit including a control unit and a second circuit unit having a driving unit. The apparatus generates, by a power-supply unit, a power-supply voltage necessary for driving the driving unit to supply the power-supply voltage to the driving unit. The apparatus detects a voltage reduction of the power-supply voltage and performs access stopping processing for stopping access of the second circuit unit, based on the detecting of the voltage reduction of the power-supply voltage.