Light Emission Control Stability in Image Forming Apparatus
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Solution Overview
Problem
Existing image forming apparatuses face issues with light emission control stability due to high power consumption during serial communication, leading to potential malfunctions and timing shifts in light emission, which affect the quality of printed images.
Innovation Solution
The apparatus includes a photoreceptor, a light emission element, and a hardware processor that controls light emission by stopping light emission control during serial communication to prevent simultaneous occurrences, ensuring stable light emission timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If serial communication is performed between the controller and light emission controller, then control parameters can be transmitted for light emission control, but the light emission controller consumes large amounts of power causing timing shifts and malfunctions
Solution Approach 1:
The system performs preliminary actions by stopping light emission control before serial communication begins, and resumes it after communication completes. This sequencing prevents simultaneous operation of light emission control and serial communication, eliminating the power consumption conflict that causes timing shifts and malfunctions.
2Speed
If light emission control and serial communication occur simultaneously, then system responsiveness is improved, but timing accuracy of light emission deteriorates
Solution Approach 1:
The system implements periodic action by alternately switching between light emission control mode and serial communication mode. Light emission control is suspended during serial communication and resumed afterward, creating distinct operational periods that prevent timing conflicts while maintaining overall system functionality.
Data Source
AI summary
An image forming apparatus includes: a photoreceptor that forms a toner image; a light emission element that exposes the photoreceptor; at least one light emission controller that controls light emission of the light emission element; and a hardware processor that transmits a signal including a control parameter for controlling the light emission element with respect to the light emission controller, wherein the light emission controller stops light emission control over the light emission element according to communication that receives the signal including the control parameter from the hardware processor.