Temperature Sensor Vibration for Ion Migration Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The continuous application of voltage to temperature sensors in image forming apparatuses can lead to ion migration, potentially causing short-circuits between wiring patterns due to the growth of crystals, which is not effectively mitigated by existing countermeasures.
Innovation Solution
Incorporating a vibration mechanism that applies vibration to the temperature sensor during waiting periods when image formation is not executed, breaking and inhibiting the growth of crystals formed by ion migration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If voltage is continuously applied to the temperature sensor during waiting periods to maintain temperature control, then temperature control accuracy is improved, but ion migration occurs in the printed circuit board leading to crystal growth and potential short-circuits
Solution Approach 1:
The patent applies vibration to the temperature sensor during waiting periods when voltage is continuously applied. This mechanical vibration prevents ion migration in the printed circuit board by disrupting the formation and growth of conductive crystals, thereby preventing short-circuits while maintaining temperature control accuracy.
Solution Approach 2:
The patent implements periodic vibration application during waiting periods rather than continuous vibration. The vibration is applied in cycles that coincide with the temperature control requirements, preventing ion migration during critical periods while minimizing overall vibration exposure.
2Reliability
If vibration is applied to the temperature sensor to prevent ion migration, then reliability is improved, but device complexity increases due to additional vibration mechanism
Solution Approach 1:
The patent combines the vibration function with existing components in the image forming apparatus. The vibration mechanism is integrated into the temperature sensor assembly or nearby structures, sharing mechanical elements and control circuits to minimize additional complexity.
Solution Approach 2:
The vibration mechanism serves multiple functions: preventing ion migration in the temperature sensor, reducing crystal growth on circuit boards, and potentially preventing similar issues in other electronic components. This multi-functionality justifies the added complexity by providing broad protective benefits.
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
Prevents the occurrence of failures caused by crystal growth in temperature sensors, ensuring reliable operation by maintaining sensor functionality and preventing short-circuits.
Implementation Method 1
a vibration unit which applies vibration to the temperature sensor in a waiting period in which the image formation by the forming unit is not executed and the heating control by the heating unit is executed
Data Source
AI summary
According to one embodiment, an image forming apparatus includes a forming unit, a heating unit, a temperature sensor, and a driving unit. The forming unit is configured to attach toner to a recording medium to form an image on the recording medium. The heating unit is configured to heat the toner that is attached to the recording medium by the forming unit to fix the image to the recording medium. The temperature sensor is configured to detect a temperature of the heating unit. The vibration unit is configured to apply vibration to the temperature sensor in a waiting period in which the image formation by the forming unit is not executed and the heating control by the heating unit is executed.